Thread: issues with the Edelbrock 1406

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We run the same carbs on both my 27 and my Son Don's 23. We only had that problem one time. We got back from a long drive one 95 degree day and his T started cutting out. We felt both carbs and they were smoking hot, so we figured the fuel boiled. Strangely enough, I have exactlly the same 2 x 4 setup on my 27 and when I felt mine that day the carbs were cool. We are going to add two of those phenolic spacers to his carbs if the problem reoccurs. I think part of the reason his carbs were hot and mine were cold is because his intake is highly polished aluminum and mine is satin. Perhaps the shine was reflecting the heat back up to the carb bases? That is the only reason I can even think of why his is hotter than mine. Once his car cooled off it fired right up and ran like normal.

You might also try some of that covering that goes over the fuel lines to keep the temps down.

Don

Aluminum is a great heat transfer medium - so good that many companies use it for radiators. Next, most Performer intakes have an exhaust gas passage though there are versions without. If it has that EGR/exhaust passage set up, that adds even more heat to the carb. The boiling point of gasoline can be as low as 100 degrees F up to 400 degrees all depending on the additives. A phenolic spacer is the first step with a heat shield as a follow up - there are others, ceramic insulated versions, besides the usual and conventional Edelbrock, Holley and Mr Gasket