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I saw that a stock 97 mustang only cranks 150 hp. This is what I have as far as the engine is concerned and am wondering where to start. Does the computer have to be reprogrammed to accommodate a bigger throttle body and mass air flow sensor? I do have dual exhaust with flows,kn filter ( which I've heard the oil from the filter messes with the airflow sensor any comments?)any comments helps thanks
 

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carguy said:
So anyway I know it was a bad joke but how some info those pulleys :)
Carguy,
First off, Brandon is a Virgin, and he just likes everyone to know that :p j/k

Underdrive pullies are basically the same. Some are made of steel and some are made of a lighter aluminum.

Aluminum, is lighter than steel, and thus, doesnt take as much rotational force to get it up to speed, so Aluminum is the way to go... BUT the differences are so minimal that you would never notice the difference in the car anyway. I use an aluminum UD pulley from ASP.

As for the other accessory pullies, if you use them, it will only free up a slight amount of power over the crankshaft pulley.

And 3.8 = 232ci ;)
 

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ASP are probably the most popular but one is probably as good as another, March are good too.
 

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