Originally Posted by JERICOGTX
Originally Posted by 440Jim
12.7 CR
Racing gas
vacuum pump


Interesting. Makes more Trq, and HP than my 563 with 345CNC heads, with less compression, cam, cubes, and carb. I must have done something wrong.

Precisely why there isn't a dyno racing class.

CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax