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  1. GTX63

    Rochester 4-bbl quadrajet idle on 1978 Chevy 1/2 ton

    650 or 700 rpm is a general rule of thumb. That can vary however, depending on whether the engine is stock, altitude, etc. Without more details, it sounds moreso like a choke problem than an idle speed problem.
  2. GTX63

    Elementary question, spark plugs.

    Assuming your 400 is in good condition, and the plugs aren't oil or gas fouling, check the tip/electrode for wearing or rounding. Ultimately, buy a replacement set now, and your engine will tell you when it is time.
  3. GTX63

    How do YOU set timing?

    I'm not ancient, but I still grew up in a time when the old timers could build and tune an engine without a book, spec sheet, or proper terminology. These were guys with street cars running 11s and 12s on a 1/4 mile drag strip. They could work their magic on 427s with open headers, multiple...
  4. GTX63

    How do YOU set timing?

    I knew an old timer, years ago, he set the timing on his Chevies by ear and by start. What I mean is, he ran them to operating temp (190-200F), moved his distributor until the motor smoothed out, then advanced it a little more, and shut it off. He would restart them about 60 seconds later and if...
  5. GTX63

    How do YOU set timing?

    Most everyone of my sbc distributors vacuum advance is pointing somewhere between the #4&#6 plug. So if I was on the road with no tools when the distributor spun around, I know where to rotate it close enough to get me home. I also set total timing and rarely ever use a timing light. That has...
  6. GTX63

    Brake pad issue

    Use new retaining clips for the inside pad. They should be included with every set but they aren't. Also, tap down the little fingers at end of the pad, against the calipers. If you don't, they will rattle.
  7. GTX63

    Door panel resto- backyard style

    For every squarebody on marketplace with prime top shelf parts and a 45k selling price, there are 100 poor slobs like me that repurpose, and scrounge and pick the bones off the parts truck behind my pole barn. My shop has a dirt floor with no lift. I paint under a carport draped with plastic and...
  8. GTX63

    83 C20 Crew torque converter replacement

    I'd spend a little time tonight on Babel and write up a list of questions that he can read tomorrow morning. Then put them into Babel so you know what he is talking about. Diagnosing what you have described could go in 36 different directions, and I would not put a torque converter at the top...
  9. GTX63

    One piece window conversion??

    I met a guy with an 84 C10 that installed one, and honestly, I just didn't like it. I usually drive around whatever truck I am currently rehabbing for 3-6 months. The one I currently am in is a 1980 GMC K15 with no factory air. No dash vents, just the kick panel pull knobs and the vent windows...
  10. GTX63

    Stripped crankshaft hole with new harmonic balancer bolt.

    It gives you an additional option/chance. First, retap for the same size bolt. You have nothing to lose. If that fails then tap for metric; that gives you a second option and leaves a BB bolt for your safety net.
  11. GTX63

    O'Reilly sux balls !!!

    Auto parts houses have always had tier pricing. 35 years ago the NAPA guy could quote me the walk in price, the buddy price, the *******'s price, commercial account price and maybe a few others. Apply for a business tax ID in your state and set up an account with O Reillys. Or if you have a farm...
  12. GTX63

    K10 Air Conditioning Condensation Leak to Interior

    Yes, there should be a drain hole near the firewall that allows condensation to empty out. It is likely plugged and causing it to back up into the passenger compartment. The unit shown in the photo is from a 1978 C10. Go at it from below with a small pick. It should come out pretty fast when you...
  13. GTX63

    New guy from Central Illinois

    Welcome. Hard to believe a beauty as clean as that came from Illinois. I drove a 77 GMC Sierra K15 in 1986 from Illinois that was about rusted to the upper fender trim strips, lol. I loved that truck but there was no point in locking the doors.
  14. GTX63

    Trading 74 C20 for 73 C30 Dually

    Nobody can tell you what is best for you, we can only tell you what we like. I like the looks of both. A guy with a tackle box of tools can change out a small block chevy in a squarebody between breakfast and lunch. I replaced some metal around the rockers and wheel arches of a 74 C10 this week...
  15. GTX63

    Anyone have a LS swapped 3+3?

    Yes, many of the buyers for those systems are looking for the reliability of late model injection. The problem is, and maybe it is due to marketing, is that they are generally not bolt on and walk away set ups. I have known several guys who tired of the 6 pumps and goose the gas for 2 minutes...
  16. GTX63

    Is this a good deal?

    Yes, location makes a big difference when it comes to price. It looks like there is a lot of potential from the exterior pics. Here is the southeast, a good condition, 2wd hovers around $5500. More money for 4wd. "Runs and drives" for a 35 year old truck still means you will likely have a lot of...
  17. GTX63

    1983 454 vs 5.3 LS for towing

    The 454 would be my choice based on power and simplicity. That doesn't mean you shouldn't do the 5.3, it just means I probably wouldn't. There are also very few overdrive transmissions that I pull over 5k loads with in overdrive. I meant to say zero. But I'm in Tennessee.
  18. GTX63

    NP205 Pops out of low

    I had a similar issue on a 203 and it was also the linkage. Soaked it in PB Blaster until I could free it up and then worked it back and forth everyday for a few weeks. The truck had been sitting outside for years.
  19. GTX63

    Help me understand 5.0 disparities

    The size of an engine has little to do with performance, or we would all be running 460 Fords. They can be the same size but share nothing else, ie cam lift, valve size, head breathing capabilities, carburation, as well as the quality of internal design.
  20. GTX63

    How much more power can a 5.3L make without hurting road manners or gas mileage?

    Just swapping out the typical 5.3 for the old 350, without any modifications, is going to make a pretty noticeable difference. This is coming from an old school, gen 1 sbc diehard fan who also happens to be able to critically think. Reading about what it is you are wanting, and some of your...
  21. GTX63

    Engine dieseling diagnosis…

    Seafoam works, but if the issue isn't carboned valves or a gummy quadrajet, then you might think it is useless. Personally, when I get a motor that has been sitting, or driven in a poor and unmaintained condition for an extended period, I start with a full can of Berrymen B12 in the gas tank...
  22. GTX63

    Heater core requirement for new engine install break-in/ test?

    No issues. Just get a flush tee and a couple hose clamps, tie the two heater hoses into the tee and you are done.
  23. GTX63

    I need help and to know what this truck is worth

    $500-1k for the truck in the photos with no title and the same guy has owned it for decades makes that a good deal as a parts truck. The bed, fenders, doors, drive train etc can all be used on another project and spare items sold off to offset the costs. As a donor truck, the money isn't as...
  24. GTX63

    I need help and to know what this truck is worth

    Squarebody C10s aren't so rare that you have to cut a tree out of the frame to own one. 1K is top dollar on a good day but I certainly would start with that as an offer. I'd also want to know who is responsible for cutting the tree out? If I was, my time and chainsaw chain would be coming off...
  25. GTX63

    Recommend me a cheap

    https://www.harborfreight.com/20-gallon-parts-washer-with-high-flow-pump-58679.html

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