The guy I got it from his brother is the one that owned it and is back in Newfoundland. Ok I'll check the heads I know theirs markings. Pretty much every thing on the sled is after market
I just bought a 2008 summit 800r bored out to an 890. The guy I got it from said it runs on high octane race fuel. Was wondering if I can get by running 91 or 94 octane in her or stay with straight race fuel. And if so what octane you recommend?