ProComp/Speedmaster aluminum heads

318willrun said

1. weight loss - ok, agree
2. octane level - closed chamber heads are going to struggle to help this. AND, open chamber heads flow better anyways
3. 1/2 second - You have the power to almost go a 1/2 second faster now, just have to get it to work.

Click to expand...

I'd love to talk to you about all that for sure, but I just like to keep it directly on the function dependability and all that of these heads...