yes you can actually push out alot of power running tbi. even out here in cali you can run a smog legal setup putting out 450 hp. the problem with tbi systems is that alot of times a bottleneck affect will occur. you really got to make sure everypart is helping the other part out, but anything over 300 hp youll need a new fuel pump regulater and injecters to meet thier demand. and after all is said and done youll need to have a custom chip built if not tuned in by someone.