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Quote Originally Posted by Crispyt View Post
Irecentl came across this kit on the internet that clams you will gain about 40HP on your TBI engine. It has something to do with replacing your fuel pressure regulator spring with a different one and adding some kind of throttle body spacer. The link to the kit I found is listed below. Has anyone heard of or done this kind of thing before. Also is this bad to do, will it hurt anything in my fuel system? It says it mkes the system run at about 14psi with the upgade.


Thank for your time and help all!




Link:
http://www.ebay.com/itm/GM-TBI-40hp-...d752d9&vxp=mtr
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ID:	44450 Throttle body modified and mounted to a duel plane carb manifold!