right now i have a b18b1 with a b16 head, and 12.1 pistons with a few other goodies, and i was wondering what i could get away with without blowing everything up.. i was considering buying a block guard for safety, but is it possible for a 50 shot at least? it's a wet kit - any ideas on how much timing i should take back and where i should be about if i spray 2nd on out - right now i'm cutitng 13.8's @ 98 mph - somewhere around a 13.0? thanks guys.