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I have a prob..i was gettn backfire thru the carb..so i thought it was a burnt valve..ripped the heads off...and found silicone on the head gaskets..and no burnt valve..what could it be??
 

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Check your timing. I bet your running behind
 

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while checking your timing, also check the firing order and wires aren't crossfiring.

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My '68 Camaro
Doug G.
68 Camaro
406 ci.
 

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Kyle,

If all the rocker arm and push rods are ok, then you need to check the camshaft. If the heads are still off turn the engine and check every lifter to be sure they move up the same amount. A flat lobe on the cam will cause a back fire.

Larry
 
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