Besides when you by the heads off you get to see the cracks and then you wonder if you should by new heads. Put a 4" stoke crank in with no more than 9to1 comp and go,don't get too caught up in the hype of quench or trying to run more comp than what will work in the REAL world.
Besides when you by the heads off you get to see the cracks 
and then you wonder if you should by new heads. Put a 4" stoke crank in with no more than 9to1 comp and go,don't get too caught up in the hype of quench or trying to run more comp than what will work in the REAL world.