A local guy here is running a 302 with TW heads an S-trim, EV carb hat and your basic bolt-ons is in the high tens. His brother running a 377 with a procharger D-1, EV carb hat, TFS high ports went 10.4s on his first time out at the track. Here is his website http://home.elp.rr.com/hipo/index_1.html