Help me hit 12's with my 302

[72GrabberMav]

Thanks for the advice guys, I cant do nitrous though on the stock bottem end, and heads are a little out of my price range right now. I think im gonna save up or just port/polish and a valve job. I want a 3000 rpm stall, and 4.10's. I dont know what rear i have though, the guy i bought it from said it had a ford 8.8 and 3.73's. But that is no way possible as i am driving the car now. Does anyone know what rears came in 72' maverick grabbers? I know i probably don't qualify as a mustang guy yet, but i hope you guys won't mind me asking questions about the mav. BTW, i have an 84 stang, and a 429 waiting to be rebuilt to go in it. Shooting for 11's with a mild setup with it, should have no problem.