I am having fuel starvation troubles on my 70 Blazer. It has an aftermarket huge tank. Under hard acceleration, the fuel pressure will drop to 0, and in the high rpms, fall on its face. I have replaced pump, put an electric back at tank, only to still have problem. I blew into the tank to blow off sock hoping this was it, still no fix. I put my lawnmower tank in back at first, same problem. I can see my line from front to back, looks fine, this is about all I can guess it is now. Anyone had similar problems? Drive it Like You Hate It!