|
Post by cjskotni on May 3, 2013 21:44:10 GMT -5
I thought 72+ engines were built with the hardened seats in anticipation of unleaded fuel. I run 93 unleaded in mine with some Stabil to help combat this E-10 crap.
Engine can take up to 18* of initial timing on this without pinging. Anymore and I'm pinging under a load. I have aluminum heads and 10.4:1 compression.
|
|