Switching to TSP 231/237
Last edited by speedo; Apr 28, 2005 at 06:04 AM.

I would say that your heads are whats stopping you making good numbers. They are the constriction in the system.
With good heads you will see a vast improvement at both ends.
Save your money and get some heads. You already have all the other bolt-on's.
Good luck.
Low mileage 241 casting heads with good valves for $125 shipped
Machine work to resurface for piece of mind - $100
Porting kit - $60
Valve lapping compound - $5
PRC Gold kit - $255
MLS head gaskets - $38
Stock GM headbolts - $50
Installation, bowl blending and light porting done by myself.
Before heads best 1/4 et - 12.11 @ 112
After heads best 1/4 et - 11.80 @ 115 tune unchanged
Low mileage 241 casting heads with good valves for $125 shipped
Machine work to resurface for piece of mind - $100
Porting kit - $60
Valve lapping compound - $5
PRC Gold kit - $255
MLS head gaskets - $38
Stock GM headbolts - $50
Installation, bowl blending and light porting done by myself.
Before heads best 1/4 et - 12.11 @ 112
After heads best 1/4 et - 11.80 @ 115 tune unchanged






