Hi I have a 1985 GMC Sierra 305/5.0L it has right around 100,000 miles but is a good solid original motor with no abuse on it. I originally had all the emmisions stuff on it for that year I have recently taken it all off and put on new carb, intake, headers, he I distributor, MSD 8.5mm plug wires and dual exaust. Having taken all the emmisions off and all the new stuff I have on the engine what should my degrees be when timing the engine?
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