Thoughts on the 452 heads

aaronk785 said
They are the rpm copies. My freinds talked me into it. Said I would pick up. I was very dissapointed. I bought them bare and added quality valves, springs and retainers and run of the mill 3 angle valve job.

Those heads are pretty easy to get good numbers out of.
They’re in the 260 range ootb.
A good valve job and some bowl work along with tweaking the SSR, trim the guide bosses, square up the intake port openings...... will get you into the 290 range.