My get as much port velocity as u can. The problem is that too much and you get turbulence? The standard LA head you can only so much. It has to make that sharp turn.
Now a G3 head that's a whole different ball game. Matt

Tom...I don't think those are heads Aluminum Magnum heads, only a few sets of those made it out of MOPAR alive, his heads are what some guys call small port Commandos, Indy was blowing them out awhile back.

With a street motor in a heavy truck I'd be more concerned with his mid lift numbers...400 to 500.

Part number of the heads in question...Maybe this will help.

P4532900

For what he wants the RHS heads would be good, aldough they are heavy.
Mine flow 298 cfm at just above 0.5" lift and then gets turbulent.
This is at 185 cc ported by me.
Thats more than 1 cc removed dough.

I stayed out of that conversation on that site.

But here's my 2-cents worth. He should Send them to Brian @ IMM or Dr. J's and tell them what he wants from them and they will get him what he needs.

I personally like Dr J's phylosohy on the subject: (copied form their website) At Dr J's Performance we do not believe on individual stages of porting, because it does not benefit the costumer. Our goal is to provide the customer with most amount of performance per dollar spent. Every head that leaves Dr J's performance is ported to its maximum potential.