I'm in the process of building a 1983 Mustang gt for drag racing. We have alot of racing in our family but noone here can figure out what to do next. Currently it is a "street legal" car. the mods include; 1979 302 bored to a 306, aluminum intake, 390 stock 4-v carb, stock heads, headman shorty headers to straight pipes out the back (no muffler), it has a c-4 tranny that does need some help, 7.5 rear-end but its strong enough to take the power, no smog or ac. now i just needed some advice wher eto go next with out having to tear down the motor. could i s-charge it, would heads help, is nos ok, and how big of a stall for street use aswell. the stats are in 1/8 mile as it sits it ran a 9.90, but i think it should be in the 8s the motor builder said it has aroung 350 hp at crank. if anyone can help let know. here is link to see it
http://www.cardomain.com/memberpage/561387
http://www.cardomain.com/memberpage/561387