Auto Specialties Crank/Alternator Underdrive/Overdrive Pullies
How much more hp would i see by changing to these?Car is a 94 trans am lt1 only mod is full flowmaster exhause.

 

http://www.ws6.com/mod-2.htm

0.7 hp

 

Good thing i check into stuff before i buy them

 

I was always told they didn't do anything. Some people even said they didn't like them at all. They work better on Stangs than F-Bods. You need to look into getting a cold air intake kit.

 

Every little bit helps. $/HP on some items are questionable, however the benefits of some mods will also vary according to other mods.

When you think of how much gain there is from from a mech. fan to an electric fan, you can see where reducing the work load of the engine to run accessories frees up more power to the crank.

Don't know about gains from UDs, however I do think that throttle response is improved. JMHO