Originally posted by pat mccarthy
you may be ok BUT i wound check valve to pistons clearance if you take some one word what said it is ok you are a fool. and with a head change to i would for shure check it. why are you running the 325 afr heads?i think for the cc runner on the heads and the 0.50 is small on the cam with the big runner heads. the cam stop 6000 and the head will go past that . to make good use of the heads i think a small roller soild cam would take the rpm that the heads will see .i know you will need more cr for the bigger cam. i think the cr and the cam is good but the heads are big for you com the 502 could take some more dura @0.50 but that is what i think .big engine low cr small cam good air speed smaller cc heads = torque .big cc heads hi rpm more cam more cr hirer hp and rpm
What Pat says here.Way to much head.I would think it would be really soogy on the bottom end because of the size of the heads.