So I'm finally getting the money together to swap by the problem is I'm not sure which route to go 350 tbi....of course I need it to pass smog (California), 350 tpi 5.7 out of a 89' iroc, 350 5.7 lt1 from a 1996 caprice some feedback would be greatly appreciated
It's also going to be my daily driver
Thank you in advance

 

I would go with the 350 tpi and if you stick with tbi use 55#hr injectors and a anlu eprom.

 

Is this your personal preference or is it the best overall perfomance setup of these options?

 

The lt1 will take alot more work to get going and it has a odd cooling system and optispark. Unless you are going all out and dropping the tank for a higher pressure fuel pump have the harness and ecm for the Lt1 its a better engine but not worth all the work in my opinion you would be better off taking the next step and saving to do a ls swap.

 

Well I'm looking into these ads

http://sfbay.craigslist.org/sby/ptd/3568585618.html

http://sfbay.craigslist.org/sby/ptd/3502407429.html

Doesn't the tpi need a high psi fuel pump aswell.... That's the future plans but I would need the k member trams mout and doner car for all the rest ECM fuel line etc money pit list probably goes on lol like I said said future

 

the tpi would need a higher fuel pressure a delco ep241 pump, You would want to make sure it comes with a maf sensor.

 

Wow those things are expensive, if it doesn't ?

 

The injectors on the tpi engine have been replaced so that is good the stock multec's are junk. If it doesnt I would look on ebay or here for a bosch one they are usually 50-80 used.