groundpounder
forum member
- Joined
- Aug 9, 2011
- Posts
- 145
- Reaction score
- 7
I'm going to be doing a DOB kit this spring. I won't be forging the motor so I'm going to be limited to the 450 rwhp. Do I need to run the more expensive 91 octane that I'm currently running on my N/A tune? My gut says I should run higher octane but what's the science say on it. Opinions?