fasterpatrick Pat Why are you mounting the fuel tank so high in the chassic. Not sure how many gallons it holds but if it's 15 gallons, thats 105 lbs of high wieght in the car. That is not a good place if you want to autocross or roadrace the car. The other question is if you are going to mount the fuel tank that high, just add a bung to the tank near the bottom. About 1" from the bottom seam. How are you going to drain the tank if say you get a bad tank of fuel?
I have seen this happen when gas was $4.22 per gallon. Did you look at old style GM gas tanks? They are wedged in the back and give good ground clearance coming in or out of a trailer. ERA tank is 20+ gallons, sits very low in the car. There is still a full trunk for storing things. I do have my battery also in the trunk. Rick L. Ps Pat I started withthe same pump as you(fuel) THIS is not a good vacuum pump for fuel. Works great as a gravity feed pump. It will support 1,000 HP. Paxton, Stewart, and a couple of others use the same pump with their names on it. Weldon is a better one. I started with this pump. I went to internals.