455 Dyno'd today & I am horrified!!

Discussion in 'Street/strip 400/430/455' started by '72 Skylark Custom 4bbl, May 25, 2019.

  1. '72 Skylark Custom 4bbl

    '72 Skylark Custom 4bbl Well-Known Member

    Through 8 pulls we’re at 391hp & closer to 500 lb. ft.

    Getting there.

    Kyle
     
  2. hugger

    hugger Well-Known Member

    The first pull wasn't a pull then they were just loading it a little surprised they didn't make that clear tho
     
  3. nickbuickgs

    nickbuickgs nickbuickgs

    I recently Built a Stage 1 iron head & similar same intake and exhaust cam was on 112cl .

    The compression was 9.5-1 all the rest bone Stock 4 speed 70 carb ,iron intake , etc with exception of headers .
    On the Dyno it made 395 at 5500 34 degrees . 93 octane . Don’t remember Tq .

    Hugger was on the money .

    I would say your right where you need to be .

    I have not had one cam from TA , comp or lunati that I could get to come at 0 . Usually all are 4-6 advanced .

    You guys should have CC calculated the volume of piston , deck height volume with piston at TDC & CC head chamber . Otherwise I bet your closer to 9-9.7-1 . So that’s close to 10.0-1 lol .thars with 040 felpro gasket
     
  4. 12lives

    12lives Control the controllable, let the rest go

    Kyle - read the thread from Larry on power timing.
     

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