Hi guys I am fixing to add a 100 shot on my heads/cam/longtubes car. compression is 11:5:1 i was wondering if I pull 5 degrees of timing and run 100 octane is this gonna be ok? I will also richen the a/f a little. I will be running a TNT F1 kit.
thanks guys
chet

 

I doubt you will need any timing retard, much less 5 degrees..especially with 100 octane. Should be able to run 100 hp wet shot on 11.5 cr with 94 octane and no timing retard. If you richen up the AF, use 100 octane, and take 5 degrees out, you wont be using the full power of the 100 hp shot, probably loose 20+ rwhp doing all that stuff.

 

On my H/C car, we pulled roughly 4 degrees of timing out and i sprayed 125 all summer. I always got some good gas to mix in with my 94 though (maybe 5 gallons or so of 100+ to mix in) and it worked great.