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  1. rich weyand

    h4 7" round headlight kit need help.

    Yeah, since both headlights always do the same thing, the signals from either one are enough to run a relay kit.
  2. rich weyand

    best bolt on performance mods

    It's definitely the way to go. I was surprised by how far off I was, and how much difference it made to be dialed in to the numbers.
  3. rich weyand

    best bolt on performance mods

    Nope, you got it. The sensors have a finite lifetime, so you pull them and cork the bung. You can tune up any vehicle with a bung you can mount the sensor in. Use a high-heat copper anti-seize compound on the thread so the sensor or the cork don't rust in place. And the bung has to be on the...
  4. rich weyand

    best bolt on performance mods

    I'll tell you what I did. First, I got a wideband meter (I got the NGK) that was not a "bolt it into the dash" kind of thing, but something I could hook up and set on the dash while I drove and tuned for a couple weeks, then take off once I was set. Once you have it set up, it is pretty much a...
  5. rich weyand

    best bolt on performance mods

    Yeah, a muffler shop will braze a bung into the exhaust pipe behind the header flange (with headers), or after the manifold flange for a manifold, for $20 or so. They have to do that with all the systems they replace on EFI cars anyway, so this is not a new thing for them. They should also...
  6. rich weyand

    engine running funny

    See if you can go in with somebody. Once you are set up, you don't need it any more unless you make substantive induction or exhaust changes.
  7. rich weyand

    Jetting help

    You're too far away or we could work on it here. Try the tune I posted above. Maybe $40 in parts. It should be real close. May have to change the rods a bit, but that tune was spot on for several different 350 SBC setups I went through.
  8. rich weyand

    engine running funny

    Get an A/FR meter.
  9. rich weyand

    whats a good header to buy for my stock 85 K20

    Hooker #2453 for the K. Hard to get an X-pipe on a K though. I went with an H-pipe right under the tailcone of the transfer case.
  10. rich weyand

    Engine break in

    Boy, do I know that story. "And how much is THAT going to cost?"
  11. rich weyand

    Engine break in

    That's exactly correct, and that's why there is no break-in period to speak of any more. Back in the day, though, there was a recommended period for new cars of avoiding constant speeds, not high-revving the engine, no WOT, etc. for the first few hundred miles. With roller cams and...
  12. rich weyand

    what carb to use?

    If I was getting a new carb, I would get a Qjet from SMI Carburetors. Between the Holley and the Edelbrock, for street use I would go with the Edelbrock. BTW, I have the tuning parameters (jets, rods, springs) for an Edelbrock 1406 on that engine.
  13. rich weyand

    engine running funny

    Not if the fuel pressure is within their operating range, which, for mechanical fuel pumps, is usually true.
  14. rich weyand

    Taillights not working!

    You underestimate how screwy the electrics can get without a cab ground. Until you install that, you have no clue what you really have going on. Also, check for those tail light housing grounds. Headlights too, while you're at it. One sheet metal ground on each side. That is, on your '83...
  15. rich weyand

    83 K10 Cold Idle issues

    That's a good point, so let's elaborate. A carbureted engine with an automatic choke (as opposed to a cable/manual choke) needs the throttle pedal depressed all the way to the floor once, then released, to allow the choke linkage to reset before starting.
  16. rich weyand

    Gauge issues?

    Front of the block is fine. All the cab ground needs to be is a one-foot piece of 12 AWG stranded with large crimp eyes on either end. Here is where it goes. To the back of the head is even better if you can reach around behind there.
  17. rich weyand

    Taillights not working!

    Did you look for that cab ground? Yeah, this can be another of the symptoms. Also, the lights in the back should have a ground to sheet metal from the light housing. The '83 has one on both sides. Make sure those connections are clean and intact. More times than not, electrical problems on...
  18. rich weyand

    Gauge issues?

    First, check that the ground is in place from the engine to the cab. The frame, the engine, and the cab are all connected to each other with rubber mounts, so there have to be ground connections. The frame is connected with a smaller ground wire that comes off the battery. The engine is...
  19. rich weyand

    dual tank cable selector valve

    If you go to an electric valve, use the motorized one, not the solenoid one. More money. More reliable.
  20. rich weyand

    short box saddle tank differences

    The differences are that the 1982 and later tanks had a 1/4" greater diameter filler neck for easier filling with modern higher-delivery-rate gas pumps, and 1987 and later had anti-slosh plates to keep the electric fuel pump used with TBI from sucking air, since there was no carburetor float...
  21. rich weyand

    Fuel Tank Switch

    On a 74 you should have a solenoid valve. The way this works is that when the power to the solenoid valve is off, it relaxes to select one tank, when it is powered, it holds it selected to the other tank. Removing power anywhere in the circuit, or a failure of the solenoid, will result in the...
  22. rich weyand

    best bolt on performance mods

    Any carb. All carbs have the same goal, to create the optimal air/fuel mixture. They don't do it as precisely as fuel injection, because fuel injection has a computer monitoring an O2 sensor in real time -- it is a closed-loop control system -- where a carb is adjusted and then runs open-loop...
  23. rich weyand

    best bolt on performance mods

    I think they are on the LM-2 now. Here it is: http://www.amazon.com/Innovate-Motorsports-3837-Digital-Wideband/dp/B001S7W836/ref=sr_1_cc_1?s=aps&ie=UTF8&qid=1424063447&sr=1-1-catcorr&keywords=air%2Ffuel+meter+lm-1 I use an NGK. This is the current model...
  24. rich weyand

    best bolt on performance mods

    Best performance mod is probably a broadband A/FR meter so you can tune the carb properly.
  25. rich weyand

    1986 K1500 Starting Problem After Cleaning Q-Jet

    Before you get into anything expensive, check the battery cables, the big positive one to the starter and the big negative one to the alternator bracket. These corrode internally with no outward sign sometime after 10 years. Moving them around, or temp changes, or, or, or, can make them fail...

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