yea I was looking at some AFR 325cc r-port magnum for mine or brodix 312cc r-port bb-2 plus race rites, has anybody had any experience with these on 468 drag engine? my cast irons are gm hi-perf 325 r-port 118 combustion chamber.

THANKS BRUCE I APPERCIATE IT, THE ENGINE IS A 468 BIG BLOCK

SORRY FOR THE LATE REPLY IM NEW ON THIS FORUM, IM LOOKING AT RACING/BRACKET RACING MY 68 CAMARO AGIAN AND ITS BEEN A COUPLE OF YEARS, IV ALWAYS RAN CAST IRON HEADS AND THEY HAVE WORKED GREAT. JUST WANTING TO TRY SOMETHING DIFFERENT LOOSE A LITTLE WEIGHT BUT NOT FLOW AND POWER.

looking to get any feed back from guys racing aluminum heads on chevy big blocks