I have a set on my stroker. have not ran it yet. The PO did some bowl blending and tried to polish the intake port, not sure if he helped them or hurt them. I didnt know if they were a performance head, thought it was just a '308' replacement version. wasnt alot of info on them last time I looked...5-6 years ago.
Nope, my mistake, they are 974's hogged out. Not much of a short side radius on these exhaust ports....PO gutted the floor! Pretty rough port match too. I didnt touch these, just got these 2.02's for a song.