I will be the first to tell you I am not an expert. I do not want to spread bad info around.
I am not the only one with this problem though. Lots of drag week guys have this problem. While my pump location could be the problem, and I do plan on moving it. But its my belief most of the problem is flowing 550-600HP worth of fuel but only using a small amount of it so a huge percentage is going back to the tank. Its going back to the tank after it has picked up heat from the 180* engine compartment.
Very few guys know how to properly plumb a fuel system, especially a gasoline fuel system.
I have plumbed many race cars with the smallest being a 1000 hp BB.
Improper plumbing has unnecessary sold 1000s of fuel pumps over the years too.
I am telling you with 100% certainty that the fuel pump has to be gravity fed, flooded with fuel when it is external. Can't suck it up hill, not even a little.
