How much HP?

The 'chip'?

A different intake manifold, and larger MAF would make a huge difference in your combo. Those are holding you back....especially that MAF.

You could probably put a 94-95 GT 70mm MAF and adapter without a retune, but I’d prob go with one of the newer 80mm and get a retune for it. If you change the intake, do it all at same time.

I’d change the cam too, but overall the combo is very mismatched

Yup, a stock 91-93 MAF.

Fox body Windsors are easy. Want a good rule of thumb for injector size that's easy to remember?

Move the decimal point to the right and pad 25 percent for NA cars but only 15 percent for boosted cars:

19lb injectors - 190 RWHP (familiar number?)
24lb " - 240 RWHP etc...


42 lb injectors of course, roughly 420 RWHP.

All you old heads can check those numbers against the charts you have bookmarked.

Now, I see folks run [huge] injectors all the time with no complaints. Just because an injector is larger than what is required by the engine combo, does [not] mean that it will run poorly. [This] is what tuning can do.

Someone was obviously putting money and work into this car before the OP bought it. The combo doesn't make sense because life got in the way and it needed to be put back together in running order and sold.

Hopefully you got a good deal. I haven't seen too much in this thread so far that I'd be concerned about. It looks to me like the OP is in a really great spot to make some CHEAP HP!

Oh... One other thing comes to mind about this car.


It used to have a supercharger on it. You look around under that hood. There may still be some sign.

The blower kit was probably sold off separately.