I'd suggest going with Greg Good for the heads. You might be able to find a cheaper job, but you won't find a better job. To puy it in perspective, Greg has my Gen1 heads flowing 305CFM on the intake side. Compare that to the best stats you can find on the web, and you'll see it at or above everything out there. Also, you can have him shave them and massage the chamber, if you want. That will effectively increase your compression without doing the bottom end. Since the heads are such a pain to do, and they form the basis of what you can work going forward, I'd put a bit extra into the work. If you cut back there, you'll be limited on what you get out of the rest of the mods going forward. You can buy a set of take off Gen1 heads cheap, have Greg do the work, and have them ready to put on when you want to do the work. That minimizes downtime.
Since most of the remaining work can be done after the fact, I'd suggest doing the 708 CAM & head work while you change the gaskets. You should also look at doing timing chain and water pump. Both are probably old and are easy to do once the front cover is off. It's a pain if they go when you're wanting to run the car.
After that, headers, CAT-back, rocker arms, VEC or other engine tune mechanism, TB's, and maybe have the intake ported to match the heads and TB's. All 6 of those can be done after the heads/CAM are done and can be done in stages as $ are available. If you already have headers and CAT-back, then you've got everything needed on the exhaust side.
I did the Gen2 injectors on mine. I had thought to do a before/after comparison of the air/fuel to see if the Gen1 injectors were maxed out before reaching 500RWHP. However, I didn't get around to it.
I will be putting 65mm Accufabs on my car with a before/after dyno. We've got a dyno day on 12/6, which I'm hoping to use to add some real data to the TB performance debate.
One thing you'll find about the car with all the intake/exhaust work is that it will run strong at higher RPMs. Most of the torque fall off in the Gen1 cars is due to heavily restricted intake paths and a moderate CAM profile. If you get the right springs & valve train work, you'll be able to run above the 6K redline. I don't on my car, but I have less concern about the redline since the valve train is much stroger than stock.
This is a little premature because I won't be doing the headgaskets right away, but when I do start the work, whats some other fun stuff I can do to the engine? I'd love to put a Roe blower on it, but the $$ isn't in my piggy bank right now. So, besides that, what else can I do to pep up performance a little bit? For now, the engine is stock except for Borla Headers.
