i have a chance to get some rc 370cc injectors, but i didnt know if it would be overkill on this setup, this is just the basic stuff that i see that would affect whether they would be to big or not.

gsr motor, standard bored/stroke
jg 64mm tb
skunk2 intake manifold
skunk2 valvetrain
skunk2 stage2 cams
jdm itr pistons
edlebrock header(will be upgraded to something better)

 

370 RCs should work perfect for that setup.

 

The following is guide for selecting fuel injectors corresponding to horsepower and stock fuel pressure (40psi at the fuel rail). The sizes were estimated using 90% duty cycle of the injector. The sizing of the injector is heavily dependant upon the air/fuel level the engine is tuned at (ex. 12:1 air/fuel will take more cc's than 12.5:1 air/fuel) :

310cc 200~220whp
370cc 220~280whp
440cc 280~330whp
550cc 330whp~380whp
660cc 380whp~425whp
720cc 425whp~475whp
880cc 475whp~525whp
980cc 525whp~600whp

Pulled this off evans-tuning.com I am not sure what power you make now, or what you plan to make.

 

i think ill be lucky to make 200whp, i put down 176whp untuned with a stock worn out gsr bottom end. im sure my tuner can work the tune around them, so i think ill probably go ahead and get them