just did ls/vtec and I notice it tends to bog or hesitate but when I step on the accelerator it will go. It started doing it after the conversion, checked timing it is fine. I'm using a PWO ecu. I was thinking it could be a tune up or b/c I'm using a PWO ecu? it smells like unburnt fuel when it hesitates. I also replaced the spark plugs already and it seems to run below operating temperature.