Originally posted by HybridSS
No no...they were stock LS1 castings. They are still reworked with larger valves and porting. Probably flow in the 300 cfm range at .600 lift. About a $1400-1500 head if I had to guess.
I wasn't saying this guy has high dollar heads, what I was getting at is that a turboed car can go real fast without high dollar heads that nitrous, blower, and n/a powered cars require.