GM performance parts has a new vortec manifold with throttle body injection and this manifold will fit all vortec cylinder heads GM part #12496821. My question is can I put this manifold along with matching vortec heads on the 305 TBI LO3


92 RS mods K & N air filter, thermomaster chip, turbo muffler, and finally for laughs I put in the Tornado unit.

 

Yep. Do an LT1 cam swap at the same time.

 

Thank you very much Chuck for your reply. Can Icall upon you again for your expert or anyone so inclined to answer. WillIhave to burn a new chip? What about a new aftermarket tbi. Will the fuel pump be sufficient? Will cooling be a problem? Exhust?

 

what about remaining smog legal...

 

depends where he lives.

 

The manifold has a place for egr. Would this keep it legal?

 

i was also considering going with vortex heads inplace of the world products...which are better? i know the vortex will make me loose compression but will i still see better gains with them? also i want to run n2o so wouldnt it be better to have lower compression?

 

The Vortec's put the stock LO3 in the dirt