Originally Posted by
Scott
If the problem is the fuel being too hot in the fuel bows there could be two causes. Firstly as other have pointed out radiated heat from the engine. Secondly rising fuel heat in general caused by heat generated by your fuel pump in the return style system. This is a common problem with multiple pumps in the S197 platform. Solution there is to use a controller that stages the 2nd / 3rd pumps on based on boost. Fore's FC3 controller is an example when used with a Hobs switch.
From you pictures you are feeding both bowls on your carb from the regulator to the passenger side bowls. I would expect if you ran returns from both bowls from the driver's side back to the regulator your fuel temperature would go down as fuel would not be in the bowls long enough to absorb heat from the engine. Aeromotive makes a 4-Port Carbureted Bypass Regulator, part number A1000. To see if this is the issue I guess you could put a couple of Y-Blocks in with your existing regulator. Basically fuel would not dead head in the bowls and there would be a continual flow through the fuel system. Paul, hope this makes sense? If not just shoot me a PM.