need advice

[302crew]

Okay i just got an idea that i wanted to build a sleeper so i went and got a notch for free was a gift that someone gave i have a speed density and a mass air harness im thinking of using the speed density one leaving the stock bottom end alone and porting and milling the heads the motor is a 92 so home much can i mill the heads and also should i port and polish them to match the stock gaskets or something like a set of felpro 1250's im either gonna put in a b or e cam whatever i have lieing around im going to be putting roller rockers on it full exuast and either 456 or 410 gears and a big drag radial im also going to be porting out the lower intake and maybee cutting the upper open and doing that as well i know alot of people have made setups like this go quick i just need to be pointed in kinda the right direction about everything let me know what you tguys think i rember 88carworker having a similar setup and going fast the thing im most concerned about is the stock heads how much to port them and how much to mill them down thanks in advance.