APRIL HOT ROD; 360 Magnums

Really sorry for the delay in answering this question. I have been sick, but am on the mend, now. My apologies.

I am running some very slightly pocket ported Magnum (otherwise bone stock OEM) truck heads using back-cut valves with a 3-angle valve job.

I squeezed by on the cam lift just barely; my cam is a Hughres grind that they no longer make any more, but it had .525" lift, on the intake, and that ran the valve guide boss really close to the retainer, but there was no interference, so I used it... but that is the limit. Any more lift than that and I'd have had to machine the bosses that protrude up out of the cylinder head toward the top of the valve stem. I don't know whether the R/T heads have this limitation; I would hope not.