coming out of the tank with a sump that has 1/2 bongs with 1/2 aluminum line and compression nuts(no flaring required in the whole fuel system) into a Fram canister filter and out with 1/2 aluminum line and compression nuts into a Holly Blue electric fuel pump then out of the pump with aluminum line and compreassion nuts. that aluminum line will travel all the way up the frame to the idler arm into the regulater that will be mounted on the frame close to the idler arm. aluminum line with compression nuts into the regulator then out with the compression fittings and a small section of aluminum line with a nippled end close to the carburator fuel rail then a small piece of 1/2 rubber with clamps to connect them. Now the third hole in the regulator will be used as the return with standard niple fitting (I think its called NPT fitting) with clamps and hose which will be convienient because the original 3/8 fuel line comes out close to where I'll be mounting the regulator (excess fuel will travel back that line into the sending unit) I have a 69' chevelle and it never had a return so my sending unit only has one line. pic attached where regulator will be
I have a couple comments on what you have described. First, you have to be very careful when using aluminum tubing in fuel systems. The fuel pump vibrates when it runs, and the car itself vibrates and twists as it is driven. Aluminum tubing can crack from fatigue caused by vibration. Another problem is if something goes wrong or there is a crash, the solid line will either smash closed, or tear open. Both are bad options. I know it's more expensive, but you would be better and safer using braided line. It will flex and take a hit with no problems. A second observation - move the regulator. You're putting the regulator right down by the headers where it will get hot. Also, if a line breaks it will spray fuel on the headers. Bad situation. Put the regulator up on the inner fender, or even the core support. Then run braided line over to the carb. If you mount the regulator in front of the carb, the acceleration of the car will help push the fuel towards the carb. Hope this helps. Have fun.
i agree with moving the regulator. on my old race car we fabricated a bracket and mounted it to the inner fender. it was very sturdy and worked well. that is a beautiful looking engine by the way. good luck:3gears: ralph
thank for the compliment, wait till I get back on my buick, that engine will be even prettier plus I like the distributer being in the front better and the spark plugs above the headers:TU:
