I am restoring a 65 fj45 and using a 79 drive train and 2f engine with desmogged carb, also using the 79 fuel pump with return line. My original gas tank has no provisions for a return gas line so I just plugged the return line on my 79 fuel pump, and hooked things up. Well seems like I'm getting way too much gas. Do I need to get an early fuel pump or is there something wrong with my carb?