Nicks Garage 383 build

There was a SB stroker here a few moths ago that was built with some old EQ magnum heads and a Comp XE285HL cam.
It was just here for the dyno work.

The owners 850DP carb had huge jets in it and was super rich(10’s).
After a couple of rounds of jet changes it was into the normal a/f range…….which was worth some power.

The bsfc numbers at peak power went from .59 down to .49, the fuel flow went down about 30lbs/hr, and the a/f ratio went from 10.8 to 12.4.

After the jet changes, the TQ went up 10 and the HP about 20.

I guess what I’m saying is, with a 750dp carb, tuned to deliver hi-12/low-13 a/f ratios…….I can see the hp numbers on qkcudas 406 going up 10 or so.