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  1. mderoy340

    Vibration (worse) after 904 rebuild

    The small outer circumference weights are normally there to neutral balance the converter. External balance are then added for particular engine balance.
  2. mderoy340

    Universal fuel pump regulator

    The Vacuum / Boost reference port is provided for fuel pressure compensation at a 1:1 rate, this is primarily used in blow-thru centrifugal supercharged applications. In most cases this port is left open to reference atmospheric pressure
  3. mderoy340

    Gear set

    Spools use the larger diameter 2.0 carrier bearings. If you are buying a full bearing kit make sure to specify the larger diameter.
  4. mderoy340

    Napa Gold now made in china

    walmart supertech made in USA. Cut one open and see the quality for yourself.
  5. mderoy340

    Maybe back once in a while

    People know who the problem children and adults are. Glad you are back.
  6. mderoy340

    Drag Times Density Altitude Calculator close to correct?

    My car runs very close to correction. You can keep some data notes and try to run your car this fall when the air is better. Closer you are to 0 feet the smaller correction if your tune and chassis setup is right.
  7. mderoy340

    Low Mount Alternator Install Options

    I would call CVF racing and see if they could help you.
  8. mderoy340

    Lean idle. Rich cruise.

    @Newbomb Turk Are you suggesting T slot restrictors in the front and/or back? I run a 4 corrner Demon DP. Thanks
  9. mderoy340

    318 with a new 4” crankshaft.

    I've beat on an eagle forged crank in my 340 for 12 years. I've seen people break cast cranks.
  10. mderoy340

    Tips for the track?

    With a street tire you should feather the car out of the hole about ten feet and then be able to floor it to control wheel spin. A safety loop and drag radials would help the et and fun factor.
  11. mderoy340

    Solid Flat Tappet Valve Springs

    I run a trickflow dual spring in my SFT cammed 360 7k no problem TFS-16893-16 installed at 1.80
  12. mderoy340

    Spicer 5789X u joints

    The cross section is thicker. I removed a small amount with no issues.
  13. mderoy340

    Appreciate some input on spark plug reading

    here's a video of a run with my old 340 with this camera
  14. mderoy340

    Appreciate some input on spark plug reading

    A street strip setup is a compromise. My 10" 3400 is to tight for my 360. This camera is less than a go pro and works great. https://www.amazon.com/AKASO-EK7000-Sports-Waterproof-Camcorder/dp/B01HGM33HG/?tag=fabo03-20
  15. mderoy340

    Appreciate some input on spark plug reading

    The heads are probably the limiting factor if your tune is optimized. I go down one jet size in May and another one down in July when it really gets hot and humid. The higher the humidity the lower amount of oxygen available to burn. My car runs best @12.4 flat fuel curve with the O2 sensor I...
  16. mderoy340

    Stroker Plugs

    autolite 3924 is what I run with 11:1 eddy head on pump gas
  17. mderoy340

    head gasket

    Those pistons should be above deck and trickflows are closed chamber. Measure the pistons comp height and add .040 for your headgasket thickness.
  18. mderoy340

    Flexplate and TC for a BluePrint 408 Magnum

    If your stroker rotating assembly is internal balance use a neutral balance flexplate,
  19. mderoy340

    I THINK I KILLED THE 340

    It runs 11.70s in my 3250 lb street/strip car. MP used to carry .060 composite to drop compression.
  20. mderoy340

    Leaf spring shackle angle

    put the car on the ground, fill fuel, spare tire etc. take a short drive to settle front and rear suspension. I would shim fwd if my car looked like that after a short test drive.
  21. mderoy340

    I THINK I KILLED THE 340

    my bad, my old trw flat tops are not. My pistons are .022-.025 above deck and I run a .060 thick composite gasket with closed chamber heads for many years.
  22. mderoy340

    I THINK I KILLED THE 340

    swapping 2&8 is a no go, the valve relief orientation of int and exh are not the same.
  23. mderoy340

    new 360 advise needed please.

    If the 904 you have has the low gear set in it the 2.76 or 2.94gear 26" tire works great for a cruiser. I've run fast ramp SFT cams with EDM lifters for years with great longevity. The XE262 hydraulic had 2 lobes and lifters start to go flat in 6 months which is why I won't run a hyd any more...
  24. mderoy340

    Manifold Vacuum Experiment

    Modify the dizzy housing to add an adjustable stop and run any Vac can you want. Any time the Vac can diaphragm fails you have a vacuum leak.
  25. mderoy340

    Am I Going To Be Happy With This Camshaft?

    I would run a SFT with EDM lifters. I've had great longevity and power with the Lunati Vodoo cams. You will also loose around .020-.025 lift at the valve with the SBM pushrod geometry from a cams listed lift.
  26. mderoy340

    More Summit discount codes.

    PM sent Thanks for sharing.
  27. mderoy340

    sick week 2024 pictures.

    And the hood is flat. Well thought out sleeper.
  28. mderoy340

    360 valve stem seals

    left - intake middle exhaust right exhaust with extended umbrella
  29. mderoy340

    sick week 2024 pictures.

    Thanks for posting all the great pics. Looks like a good time,
  30. mderoy340

    MP DISTRIBUTOR TIMING CURVE 340

    Agree with this approach as a starting point. The motor running on your run stand is under NO LOAD. Once in the car fine tuning can be tweeked under real world conditions. Under hood temperature and drivetrain load changes will dictate how much ignition advance the motor will tolerate without...
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