alright well i know that its not all that high compression. but my guess is somewhere close to 9.5ish.. just judging by the 76cc heads that i used to have and with the 64's that i have on there now.

but yep i was just curious on what the 100 would do. but screw it. yeah i know that it has run off of 87 once before. oh well... begining to save up for a new small block build.. either 406, or 383. i got a 350 and a 400 crank that i gotta get checked out and a guy owes me a 400 so if i can find a 509 casting 400, then thats the way ill go. streetability i dont mind, just simply because if im gonna eat the gas, i wanna go fast. so im gonna try for 375ish-400ish wheel hp. any suggestions?