I'm putting H/C with a FAST 90 on the car. Now, I know most people don't really change there fuel systems with things like that, but my car has 136 K miles on it. The pump doesn't whine and everything seems to work fine. I was thinking of replacing the pump and injectors.

My questions are:
What size injectors for a < 450 RWHP car? #42 lb/hr?
Is it worth it to get the whole Racetronix fuel system or just the pump?

Thanks. I need to know so I can order tonight for the weekend sales!

 

with my mods i maxed out the injectors at 6k. injectors should be on the list of purchases. if you decide to do 30lbs you can do them after and drive to get them tuned. the 42's will need to be tuned at install, to avoid driving issues.
im looking at 42's myself with 452rwhp.