Ok, new member here. Just picked up a very clean 89 gt. the guy had done quite a bit to get started. The car has 3.73s, tremec with a 600hp rated clutch etc. the motor...not sure about what to do. That's my question. It's got a m6007x302,crate engine in it. The motor is apparently a 306 with forged pistons and 9:1 compression. Gt40x heads and an E cam. Been out of building anything for ages and never got way into it. The car will be driven often and I'm on A little by little kind of budget. They put a Holley Systemax upper n lower on it with a 70mm throttle body and a larger MAF. It surges horribly and all over the place. But it's scheduled for the dyno in 2 weeks. Which all the surging issues have been looked at vacuum, iac, tips etc. only thing left is the tune. So...now that I rambled, the QUESTION is...what would you do to this thing to put some more power down? It runs decent other than idle. But I'd like more out of it. Thanks in advance! Any help is MUCH appreciated