newbie question
talk to Nasty N8 up here
you can make up to 500HP(rear wheel) and be on 42# injectors and they will also run fine on a stock car

DO NOT, PLEASE DO NOT BUY ANY 60# injector
check out my sticky on the fuel and injection page linky below:
https://ls1tech.com/forums/fueling-injection/293742-fuel-injector-size-calculator-fuel-pump-chart.html
ALSO, from Rceng website:
http://www.rceng.com/technical.aspx
ask me any questions about that and I can tell you how to fill it in and get you situated with what you need
I'm seriously never going above 550HP (Rear wheel) so I just grabbed the racetronix PnP kit with their 42# injectors. its the same as a 255Lph pump and it also has the option of running the BAP(boost a pump) which gives more voltage to it

