Hi all, I have a 2002 corvette track car with a LS3 495hp crate engine with OEM GM 430hp fuel injectors and intake and 90mm GM throttle body. My question is do I need bigger fuel injectors, especially when it runs at hi rpm all the time? THX Brian.

 

If your present ones aren't leaning out on top, you likely do not need larger injectors.

 

Yeah I was wanting to change F/I's out, if needed, before I ran it on dyno, but as of now I have no dyno data. THX tho.....

 

Should be. They have a lot of headroom. Can depend on factors such as whether you've added a power-adder, flex-fuel, and target lambda. Get an OBDII reader and monitor the duty cycle @ redline/WOT. They'll handle up to 90% duty cycle easily.