Im building a 355ci 380hp engine and i was planning on running a TPI setup to top it off. What factors should i look at replacing in a older TPI setup like from thirgenresource.com to make this engine perform best? I know about larger injectors and maybe some better runners/throttle body, but any other suggestions like about the computer and stuff would be nice.

Thanks
John

 

For your HP level, disegard the factory setup.

All you'll be using is the ECM and wiring harness.

Look into piecing something together...maybe a Holley SR, etc.

The long run cost will be less expensive.

 

Mike is right about the price, believe me it just keeps adding up. I'm running a TPI on my 355ci and I should be close to 375hp. I've changed just about everything, all sensors are new, I put an Holly adjustable fuel pressure regulator, 24lb Accel injectors, Edelbrock Hi-Flow intake, SLP siamesed runners, ported plenum, hypertech cap, rotor, and coil kit, and the list goes on and on. In about a month, I'm going start playing with programming a custom chip. Of course, I'm kind of partial to the TPI so I didn't mind spending a little more to make it run right.

 

bump

 

First off, don't buy from Thirdgenresource. Don't take my word for it, do a search on the vendor board.