Pump 93. We tried it with 1/2 race gas (110) but it really didn't make any difference. The cam was the PurplePlus Comp cam which is long on duration and lots of overlap. I actually used Rhoads V-Max lifters and 273 rockers, to pump up the bottom end (cylinder pressure). That one build sold me on the V-Max's! Broadest powerband ever and would touch the rev limiter at 7K with ease. The driver kissed 7K every burnout, religiously.
