Small block cylinder head question

He never said which one he has (although I’d shreak if it was a regular Performer. Also, FWIW, as reported by a few memebers the RPM is best for double duty. Flyfish shows 2 tenths gain between the RPM & the Victor. I can’t for the moment remember the other members name who tried the RPM to M1 switch and found a tenth on the M1 over the RPM. (IIRC) Slower ‘60, higher mph. Again, IIRC, the 360 was in an import running low 11’s.

The RPM-AG dual plane torque advantage on the street would be well appreciated.


True that. When I think dual plane I think a LD340 or the like. (I'm a bit old school) I was thinking more along the lines of stroker, compression, .575 roller and a big single plane intake to feed it. Hell may be even a tunnel ram. You never know which direction these guys are thinking till you ask. LOL