Performance mods that DO work

[ZL1power69]

Originally Posted by rednaxela_03

so it is the extra air that is giving the problem?
I can put rivets in the holes and that will take care of the extra air.
thanks for the help.

Yes having those two holes open will provide too much air and cause erratic idling. Safest option is to get another blade but if you can install rivets in the holes that are exactly the right size you might be ok.

[otis baum]

If you want some real power and I mean real power add a super charger. It is a one day job that really gives you lots of low end torque; there are kits for many engines. I like these because you don,t have to monkey around with the exhaust. You may want to add an intercooler as the air gives off heat when you compress it. These are really fun for low displacement engines.


If you don't go overboard you can keep the lower end pretty much stock. Like 5lbs or less.

[ZL1power69]

The only kit that is still produced for the 4.3 is made by powerdyne (blower is vortech). The kit runs at 6psi without an intercooler and from what others have told me, provides good power gains. The kit, however, is not cheap at around $2,500 for a new kit. If your willing to spend that much money then fine but you should do other supporting mods first. Personally, I don't think its practical because of the cost and the way it murders your gas mileage .

[Polospeeds]

I just bought a computer chip through Boss Performance for my 1995 4.3 liter TBI. It says it is supposed to give a hp boost. It was only $20 bucks so I dont expect much. It says to patch it into the intake air temperature sensor. I don't know where that is located. I went to my local auto store and their computer says it is attached to the airbox intake tube that goes to the front of the truck behind the headlight. I have recently added a cold air intake but there was no such sensor on my stock intake.

Can you tell me where this sensor might be? any help would be greatly appreciated.