Can someone tell me where the the fuel sending unit grounds? I chased the harness to a joint connector by the tail light harness and then it goes up the driver side of the body. Where does the harness ground to the chassis?

Where do you guys get your blow off valves, where's the best place to install it and do I have to do any tuning to compensate for it?

looks like the turbo oil line was filled with a plug and redrilled for higher psi, but less flow, is this normal? and for cleaning the old lines out and oil cooler does a mix of carb cleaner /degreaser /water sound good?

I know, asked a million times... But I can't find my answer.   What was the stock size? 3mm, 3.2mm or 3.5mm?   Also, any idea how much length I'd need? All emmisions deleted.   Thanks!