ok wassup I have rc 370's already but im kind of thinking i need 550 cc.I have hondata and i want to be at 15 pounds when the car is tuned. my boy had 370 on a b16 and his was fine at 15 pounds tuned on race gas. i just want to be safe, i invested alot of money so i want to be safe than sorry
thanxs

 

i was in same shoes when i first started. i had 370's and at 200whp they were at 60%duty cycle with 60psi fuel pressure.. so i upped to 550's.. 370's would have still worked since i'm making 260whp, but i'd rather not push it.