ok i got a stock 350 out of a 70 chvelle in my 79 cutlass with 650cfm eb gbody headers 3''stright pipes into 3'' 40s flowmasters what can i do to get a lil more power out of the motor the car is my daly summer driver so im not looking to push big power but a little more couldent hurt its got a set of 883 heads on it and would like to swap them out for something els so what is a good stock set of heads to go with im not looking to dump a lot of money into it as its my daly summer driver abd gas is already enf at $4.25 a gal but id like a little bit more power for when i do start to play with it i have a 200+lbs sub box in the trunk and its def harder to get the back wheels spinning when doing a brack stand with the subs in the trunk but makes um smoke a heck of a lot more the timing i set at 12d btdc would bering it back to 10d btdc give me a little more power out of it what little things can i do to make a little more power with a stock sbc 350