Scott Conner
Newbie
Ok so I'm hoping this is in the right place, but what is the biggest cam that a stock tbi and computer can handle? My truck has a gm 300 hp crate motor and the cam grind is different than a stock tbi engine. My problem is that the truck always seems to run a tad rich and you can smell it at the tail pipe I have replaced the plugs, wires, cap, rotor, ignition module. Cleaned and reset the IAC, checked the pressure regulator and spring. Now the PO who put the motor in had twisted the braided fuel line and it has a kink in it and the only other issue is that the egr valve is disconnected but any vacuum lines to it have been capped off