[Gunner]

I just replaced my 4160 (750 CFM) with a Barry Grant Speed Demon 750. Besides all the other advantages, it has glass float bowl sights, so I can set the float levels with the engine running and no splashing gas.

I took the jets down two steps but am not sure it was necessary. Had some detonation but discovered I had almost 25* of initial timing instead of 15* (don't ask). Backed it off to 15* initial and will see how it plays tomorrow. Much crisper throttle and none of the Holley's bogging.