I read this in a farm magazine not even an automotive type publication. I have a friend building a 355 with 9.3:1 static compression and a 280/290 duration cam for his 93 chevy 4x4. He's been told the max HP possible to attain with TBI is only about 275, I know he can get more than that it's just been too long since I've played that game. He's running a stage 2 chip, throttle body spacer and headers so more fuel will be necessary with the rest of the upgrades and it's not like he can just rejet or go for a higher CFM carb so I'm just trying to help out after I gave up playing with toys when life got more serious.
2007-07-26 23:20:32 · 2 answers · asked by Anonymous in Cars & Transportation ➔ Car Makes ➔ Chevrolet
The injectors themselves are the same physical size, so you can easily change the stock ones to ones for a 454. They fit in and actualy look identical! No need to change the throttle body, just replace the injectors.
2007-07-27 00:30:21 · answer #1 · answered by fire4511 7 · 3⤊ 1⤋
You can use the 454 TBI, but this just gives the motor more air because of the bigger butterfly plates. To get more fuel into the motor you will have to change the motor's program and that means using a new chip. Good luck.
2007-07-27 14:16:41 · answer #2 · answered by Deano 7 · 0⤊ 4⤋