Ok my 65 started starving for fuel about 3 weeks ago and has gotten to a point where it runs when its cold but now does not even get to operating temp and dies after just a few minutes of running good. At first I was thinking it was vapor lock cause it would run for a good bit until I shut off or idling in traffic would die and would not start until it cooled down. I have installed a new sending unit in fuel tank that has a 1/4 in. vapor return line which I have installed along with a fuel filter that has the vapor return nipple thinking this would remedy vapor lock but like I said it is getting worse about starving for fuel. I also have checked float and needle valve and seems ok not sticking and float is correct measurement. Could this be a bad fuel pump that is progressively getting weaker. Any thoughts?