1968 Cutlass 455 uel percolation
#1
1968 Cutlass 455 uel percolation
Hello fellow Oldsmobile owners,
I have a '68 Cutlass with a '69 Toronado 455, Holley 600cfm 4160, and headers. However I am have a problem with fuel boiling in the secondary bowl and after I kill the motor I can hear the fuel dripping from the bowl onto the secondary blade and of course it leaks a little and causes a hard start. Its was really bad so I installed a plastic carb spacer and it helped a lot to the point that i can touch the entire carburetor after it has run and its cool but it didn't cure the percolation. I have some 1100 degree heat sleeves that I am going to cover my fuel lines with because I think the passenger side header is heating up the fuel line as it runs under the wheel well. I know ethanol has lower the boiling point on fuel these days but there has to be a cure out there.Well I just wanted to see what ideas fellow Olds big block owners may have.
Any ideas would be great...
I have a '68 Cutlass with a '69 Toronado 455, Holley 600cfm 4160, and headers. However I am have a problem with fuel boiling in the secondary bowl and after I kill the motor I can hear the fuel dripping from the bowl onto the secondary blade and of course it leaks a little and causes a hard start. Its was really bad so I installed a plastic carb spacer and it helped a lot to the point that i can touch the entire carburetor after it has run and its cool but it didn't cure the percolation. I have some 1100 degree heat sleeves that I am going to cover my fuel lines with because I think the passenger side header is heating up the fuel line as it runs under the wheel well. I know ethanol has lower the boiling point on fuel these days but there has to be a cure out there.Well I just wanted to see what ideas fellow Olds big block owners may have.
Any ideas would be great...
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