problem with spark plugs....? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

big blue 72 · 09-24-2003, 11:12 AM

O.k. i got an HEI installed this past summer at The OHIO MEET which was the best time i'd had all summer and nowi have a question.
I changed spark plugs to R45T which is suppose to be a hotter plug , right?
well first i gapped them at .035 and it ran like s%it, then yestrday i re-gapped them to .045 on someones advice.
Do i need to reset the timing?
It still runs like it is bogging down and it also sounds like a rough pinging. Any help appreciated. Thanks
Big Blue

09-24-2003, 11:12 AM	#1
big blue 72 Senior Member Join Date: May 2002 Location: hamilton,ohio,usa Posts: 1,499	problem with spark plugs....? O.k. i got an HEI installed this past summer at The OHIO MEET which was the best time i'd had all summer and nowi have a question. I changed spark plugs to R45T which is suppose to be a hotter plug , right? well first i gapped them at .035 and it ran like s%it, then yestrday i re-gapped them to .045 on someones advice. Do i need to reset the timing? It still runs like it is bogging down and it also sounds like a rough pinging. Any help appreciated. Thanks Big Blue

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