Its an Ls/Vtec w/ctr pistons .25 over, portflow head, and 270cc injectors. i've tried both holley fuel pumps the 255lph & the 155lph. With both fuel pumps im not able to lower the pressure under 60lbs. i've even changed fuel pressure regulator. the car runs worse with the aftermarke fuel pumps. the car is very torquey but vtec leans out and feels weak. i never got the car running right after the head swap and spoon headers w/ 2 1/2 in piping. The car was way stronger on the stock head, headers and piping.Should i move up to 310cc injectors? Whats the problem?