The heads I have here were bought as a kit from some outfit that was pushing these things.
They came with valves that were .250 too long, and were 2.25/1.88 diameter, instead of the correct 2.20/1.81.
It’s the same situation as the kit bought in this thread:
my procomp experience, before you buy read this. [Archive] - BigBlockDart.Com
The big difference being, that guy caught the issues before running the heads.
These heads were being run with the too long/too big valves!!
It didn’t work out too good in the end.
