[Hillard]

I have my own ideas but curious what others think. 455 block, 4.21 bore, 4.5" stroke, 12.5 compression, ported E-heads, solid roller 262/268 duration@ .050", .670" lift, 112 lsa, port matched Victor, 1050 Pro Systems E85 Dominator.

I do not know the actual flow of the heads but from my experience I would guess these to flow in the 310-320 range. Unfortunately these heads have been through catastrophic failure before and were repaired. There's one combustion chamber that doesn't quite match the shape of the others.

And sorry, but I won't be taking it to the dyno to find out who is closest. I'm trying to get this car finished and ready for Norwalk, so there's just not enough time for the dyno.