What's up fellas I have a 89 trans am 700r4.....I bought a vortec engine from a 99 tahoe...I was wondering what should I do to it to have good torque and about 350 to 400HP? DO I NEED to port the heads, buy a stealth ram or edelbrock intake etc.. any ideas and suggestion are welcome thanks

 

a new cam and u there really and some headers.

 

What cam should be put in? And what intake base will work for the tpi set up...figure I would use accel runners 58mm TB..what lb injectors should I use?

 

well im a carb guy, i just prefer them. not much i can tell u on tpi. to me carb is easier to work on. very simple. not as efficient but idc lol. definatly dont over carb it. get your heads ported and polished. they flow really well.

 

Anyone who can help aside from getting the heads ported and all what else should I do to this vortec engine? What kind of cam and intake combo will work on this?

 

There are ton of buildups on that exact setup. With the vortec springs, you can't cam it near what you could with a good set of aftermarket beehive springs and retainers. Are you wanting carb or tbi/tpi?

Here are two different builds:

https://www.thirdgen.org/forums/tech...c-lt4-hot.html

https://www.thirdgen.org/forums/tech...ortec-lt4.html

 

Well not sure what the difference is between tbi and tpi aside from I know what the letters stand for....I don't know the difference in performance or efficiency if that applies