Re: Open/Closed heads
Running a 351, with 58cc closed chamber heads, and the standard deck height of cleveland block of approx 30 thou, you would have about 10.3:1. As long as the deck has not been machined down, you be able to run pump fuel fine. I have many mates with closed chamber heads on 351's using pump fuel, and they dont ping. The other cosideration is the cam. If you run a very small or standard cam, the dynamic compression will be higher and may casue a bit of pinging. If you are running a decent cam with perfrmance in mind, it would be ok. Again, why would one want run high compression, with a standard cam if they didnt have performance in mind.
10.70 @ 125.00 on the black fun top
408 Cube Cleveland.