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carb has THICK INTAKE gasket?

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Old Jun 15, 2009 | 08:13 PM
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Default carb has THICK INTAKE gasket?

ADJUSTING THE CARB TONIGHT AND SURVEYING THE INTAKE GASKET REPLACEMENT THIS WEEKEND..I NOTICE AT THE BASE OF MY QUADRAJET IS A THICK BLACK ALMOST LIKE PLATE. I DIDNT REACH IN TO SEE WHAT IT WAS MADE OF. I DIDNT THINK THE GASKETS AT THE MANIFOLD WERE LIKE THAT OR DO I HAVE SOME SORT OF AN ADAPTER UNDER THERE? ITS A 4bbl QUADRAJET, NOT ORIGINAL TO THE CAR (THAT IS IN A BOX STILL) BUT OFF SAME STOCK C3 350SB WITH AUTO, AC... ETC AND SO ON.
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Old Jun 15, 2009 | 08:47 PM
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If I understand what you are saying the carb gasket is much thicker than what you expected it to be. Sometimes these thicker gaskets are used to help with cooling the carb for heat soak problems. Another use for these thick gaskets is as a carb spacer to make the intake plenum larger for performance.
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Old Jun 15, 2009 | 10:27 PM
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The gasket for my 71 LT-1 is about 1/4 inch thick. Normal.
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Old Jun 15, 2009 | 10:40 PM
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its for heat. dont worry about it
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Old Jun 16, 2009 | 11:44 AM
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If it seems to be working OK and does not have any hard start or idle problems after the engine is hot, leave it alone.
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