Originally Posted By Dragula
Originally Posted By 572charger
ive been at 12.2 to one with my 606 cu hemi runs on 93 octane no problems , but the big motors with good heads don't like much timming either that helps out


Yup 29-30 degrees is what have seen.


My 10.5 540 liked 30* on the dyno this week.

Master, again and still