I'm sorry, I've heard it called dieseling/pre-ignition. Had no IDE of a difference.

Great info,
Really helped my understanding. I'm at 119th and ridgeview about once a month.

Yeah I typed the wrong word, yes push rod. Not sure what I said? And you guys would be able to tell better than me? Hydrolic lifters aren't as aggressive as solid lifters so yeah its a mild cam for sure. Maybe an RV cam like a 268h I think is what someone said? I just posted that so there is no confusion on solid or hydrolic.

Timing is 8.5*BTDC so it's not too far advanced because stock would be 5* and vacume advance adds 2-3*.

So should I run 91* octane? I can't make it to hy-vee every 1 1/2 weeks.

Thanks so much, as you can see I'm a little clueless on certain matters!