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  1. J

    where to start on trying to increase mpg 84 c10

    As far as motor goes I would do things in this order due to cost of mods. #1 Ignition tune up and good air filter, #2 Intake manifold, #3 Exhaust system, #4 If you only have a 3 speed I would swap to an overdrive transmission. Things like tire air pressure, type of tires, driving habits can...
  2. J

    dynomax duals from summit

    I am adding exhaust cut outs to mine. I will be cutting it to add them. What are you doing with the truck? Could be an opportunity to add cut outs to the system like me :)
  3. J

    dynomax duals from summit

    Thats a bummer. I have the hooker system but have not installed it yet. It comes with extensions for the long bed so there is no cutting.
  4. J

    290hp 350 heads upgrade?

    The 290 HP cam is a little large for the compression. I think it is like 222 @0.050 I would have left he cam and just up graded the heads. Did be get the E-tec 170 or the 200 heads? I have been thinking of upgrading my vortecs to either the fast burn or the E-tec 200 heads.
  5. J

    No power up hill or after 45 MPH

    The spring for the secondary's could have been messed with too and it could be adjusted too tight and not opening.
  6. J

    290hp 350 heads upgrade?

    Don't get something with a 220 intake runner unless your planning on running a huge stall, single plane and spinning the motor to 7K. The only heads I would consider as an exception to this is the chevy fast burn heads. Stick with something at 200 or under and with a 64cc combustion chamber...
  7. J

    How much MPG does your 454 get, and TBI conversion?

    My 85 3/4 ton has 4.10s, 35s and a SM465. My brother in law who I got it from claims he was getting 12 MPG with it. It has an edelbrock 750, headers and exhaust but the motor it self is stock as far as compression, cam, intake and heads go. This is also with a vacuum advance lock out in the...
  8. J

    Long tube or short tube headers?

    Sorry to tell you this but the dremmel is not going to give the same gains as a set of headers. Also the headers wont do much if every thing behind them is still stock. You kinda wont to work from the tail pipe forward. No point in headers if you have small exhaust pipe and a stock muffler. Part...
  9. J

    On board water?

    :( hmmm well... Weight is not a problem the truck is already 6,800 LBS. I do have water were I mud. I live near the moses lake sand dunes in Washington so there is ponds and lakes every were. Mostly want it for the window but was thinking if I would get enough mud off the truck before I get to...
  10. J

    On board water?

    Any one have an on board water set up for 4X4? Was thinking of installing something for fresh water and using it for a few different things. I want it for cleaning my truck for things like mud off the windows and out of the wheel wells before I go home. Any one else doing this? Any ideas on it...
  11. J

    Bad Combo?

    My 670 street avenger was not designed for an emission motor. Double pumpers are the same way. Why would they put emission compliant or compatible parts on a non emission/performance part? Ya I know you don't have to have the vacuum hooked up. My 454 has the advance locked out. The distributor...
  12. J

    290hp 350 heads upgrade?

    What size of tires do you have there and what gears are you running? What transmission? If your running a tall gear and have a 700R4 I would recommend changing gears in the future. Would help with the towing. Example would be if your running a 3.27 gear with 33s and have a 700R4 than I would run...
  13. J

    290hp 350 heads upgrade?

    I would get some summit 170cc heads. There cheep and you can reuse every thing. Your problem is not so much air flow with your set up, it is the low compression the 290HP motor has. The 170cc heads have 67cc chambers over the crate motors 76cc chambers and will raise the compression helping in...
  14. J

    Bad Combo?

    Say what you want rich but your wrong. Get on line and look up the instructions for your self on the holley web page. I trust them more than you on this subject. This is how I have always hooked up my dizy un less I had it locked out. Why would they put the port for your distributor on the carb...
  15. J

    Bad Combo?

    I don't know what you have owed from the 90s but I have had some bad ass cars from the 90s. I have had about 25+ cars. Most form the 80s and 90s. Shoot I have probably had a lot more than that by now after just looking at the last 5 years hahaha. The 90s had some of he greatest cars and truck...
  16. J

    Bad Combo?

    If you also are willing to spend the money you could just have a custom cam made like I did its about $280 though. If you wanted a roller cam with 800-4,000 RPM power band you could have a cam ground that will operate in that power band. Being a roller dose not mean it is confined to a specific...
  17. J

    Bad Combo?

    "All the roller cams I have looked at state that they are for 1500 + RPM. I can not find any that are for off idle." I don't know were your looking but there are a lot of cams that are lower than 1,500RPM. The factory vortec cam for one. Look at small cams like the Comp cams Magnum 260HR it...
  18. J

    Bad Combo?

    Going roller is easy. It is a little expensive if you get all new stuff but I would not hesitate to use old roller lifters. I would just go to the junk yard and pull the whole roller assembly out of either a vortec 350 or an LT1 from a early 90s Camaro. Or just take the roller lifters, spider...
  19. J

    Long tube or short tube headers?

    The car had them on it when I got the car. There welded strait to the exhaust too. The exhaust was new from the headers back. I got the car from a girl that was mad at her ex boyfriend for $600. I just needed something to put my vortec in so I would break it in. I am axially pulling it tomorrow...
  20. J

    Best stock head and Aftermarket cam combo

    I tried the LT4 springs too, I still have them in a box they were .880 on the inside diameter and still did not fit. I might have been able to put them on if I heated them or something. My voetecs are the 906 castings. That is what the GM L31 crate motor comes with. Are yours the 062 castings? I...
  21. J

    Power lagging

    I have not broke a motor yet. Raced for 3 years, have had a lot of hot rods. Some of the things I do are back yard mechanic but it works just fine. Don't bother with the clips they make for the rockers though if you have a lot of lift. Try to adjust valves with motor running and clips fling off...
  22. J

    Bad Combo?

    Make sure when you connect your vacuum advance hook it up to the passenger side front fuel metering block half way up the metering block. Don't hook it up on the bottom part on the throttle plate. You only want it to advance under a load when the throttle blades are open. Honesty if it was me I...
  23. J

    Bad Combo?

    Any aftermarket intake will be better than the one you have. The weiand intake will not work with there supercharger. There supercharger replaces the intake manifold. Weiand make good intakes too though.
  24. J

    Bad Combo?

    No very few parts interchange between them. My neighbor rebuilds them for performance and dose conversions. He works on and builds hot rods for a living. There are like 3 or 4 cars on my block that he has done a 700R4 swap in too. Ya the 12-235-2 cam would be a better cam but I thought every...
  25. J

    New Exhaust ?

    Just got exhaust cut outs for it and will be adding electric cut outs cuz I live like 10 miles from the sand dunes. Putting the motor from my street strip Camaro in the truck. I am an old mud dragger so I am building a street legal mud drag truck, and yes it will have NOS.

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