I got the 393 dyno'd. It put up some great numbers. No I am not going to share, I don't want to deal with people saying my numbers are bullcrap. The shop the built the motor said the cam I am using isn't letting the heads breathe. I am running a Comp Magnum 280H cam with 1.7 RR's. The math comes out to .544 lift. But they said the Duration is too small. What cam do you pushrod guys use or what would you recommend?

Some specs
Performer RPM 2.02/1.64 with some port work done
393cid
Flat top forged pistons with oversized valve reliefs
About to step up to a Victor jr intake from my Torker 2