m having a problem with my 450cc black top injector. can someone help me out here. Here is the problem, i am running the same setup as i did before and is using my tune ecu. The only different now is instead of usinf the blue top i am using the black top injector instead. But when i try to start the car i have to give it some gas and i smell like it is to rich, and if i let the gas off the car shut of? I am using the inline resistor just like i did with the blue top..anyone have any idea??? I even went and try a stock map and add boost with thee 450cc and it still doing the same thing..so i plug in the OEM LS ecu and the car crank right up but if i try to drive it it would flood and die out. Anyone have any idea if there is a different of the two injector?