06-16-2008, 09:27 PM
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CC Member
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Join Date: May 2001
Location: California,
Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
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DU: Looking at your gallery, the engine is very nicely detailed, however to fight fuel temp: 1. Try using a non metal hose from the pump to the fuel log. 2. Insulate the attachment of the fuel log to the manifold, as it is it otherwise becomes a big heat sink for the fuel. Although it is a SB, they too can suffer from the same heat issues. My headers I (in gallery)radiate an abnormal amount of heat because of their design. I made the fuel log and attached it with non metallic spacers sandwiching the mounting tabs, keeping them about 5/8" above carburetor base plate. Ultimately I did not need a heat spacer for the carb but used a "little thicker" open plenum gasket purchased at NAPA. They also offer a 4 hole (non-open) gasket of the same material it has a wire mesh in the material. You could also put an insulating sleeve on the fuel log which would not be unsightly. Do what it takes.......
PS: Had the fuel in the vehicle been replaced/added recently or was it winterized fuel with additional oxygen that is often blended into winterized fuels?
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Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way 
Last edited by Rick Parker; 06-21-2008 at 09:00 AM..
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