"Don't... let me catch you putting a pair of cylinder heads on your race car the manufacturers copied the dims and bolt patterns for without paying GM (if it's a Chevy, likewise Ford, Mopar, etc..) or even getting their permission. I f***ing hate hypocrisy. Especially from people from Philly."

My small block actually uses a pair of cast iron vortec heads due to the superior port geometries that they employ. These heads are produced by GM. Plus our sanctioning body does not allow the use of alum heads.

My back up heads are a pair of cast iron GM double humpers.

Just more useless dribble and venom from the maladjusted.

And if ya want to know more about my sprint car engine... You'll first have to pay the standard teardown rate charged at our local dirt track venue.