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ive been having some considerable amount of ping under wot, had to bring the timing down to 27-28degrees for it to stop. was running champion rc12yc heat range 5. today i swapped in a set of ngk r5671a-7 heat range 7. i did a few wot pulls and had no ping up to 31.5degrees of timing. car seemed...

I began taking the heads off my 440 to swap on some mopar aluminum heads and tti headers and I found on cylinder number 3 the pushrod ends and rockers on just that one cylinder show signs of oil starvation. I see the ends are welded shut. My question is would pushrods with oil holes help prevent...

I have a 1971 300 with a 440 in it. I recently had it rebuilt last march and have finally got around to getting it running. my issue is it still has a vibration off idle, it gets pretty bad around 2500, and begins to smooth out at higher rpm. this occurs without the car even moving. the car had...