Ya it's a night and day difference!

Well good point. They are non adjustable so only thing I can do it change them. Will have to put a mech gauge on to check oil psi.

When we got the 440 crate from Ross Auto in MI for the 72 Charger, had same issue. Changed the lifters, and no change. So they said that's a Mopar BB with a mid lift cam. So that ones ok, just thinking it's the same here?

I'll get a set. Will check straightness with a piece of glass for the push rods. Do a breakin etc. If that doesn't change, will look at mech fuel pump etc. Im sure it's not serious and simple. I just hate to rip it down if I don't have to.

cheers