Dynoed a 555 yesterday. Here's the shakedown on the motor, started out with 1250qf 96 jets square and the a/f ratio from 7000-7500 was in the 16.8 range, put 100 jets in came down a little, then 104 jets still was in the high 16.2 range. Motor combo as follows - Merlin aluminum block with callies magnum crank 24* edelbrock heads with super vic intake, [email protected] cam with 870 net lift . I used some c-15 gas with an ngk-9 plug. I wanted to turn it higher but with the a/f so high we just stopped at 7500. It made 948 at 7300 and peak torque was @740 at 6500. Do you think playing with air bleeds will fatten this thing up so it will live! lol thanks for the help in advance.