icanfixall
Official GMM hand model
how would you go to the larger return line kit?
You simply buy the kit with the red clamps but know this. you are needing the bleeder valve on the filter head to be 1/4 inch also. Then there is the manifold way back under number 8 injector. It needs to be changed from 3/16 barb ends to 1/4 inch barb ends. Getting rid of that older manifold on the end of the hard line from the injection pump solves a leaky area. That fitting back there has an olive in it. Many have no idea it is in there.