Quote:
Originally Posted by MT-2500
Always check the latest AC-Delco spark plug book.
A lot of times the origional spark plugs no. and gap will be updated/changed.
Besides take off the MPG should come up to.
Thanks for posting back how it went.
Good Luck
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well if i got 120,000 out of these delco, why not put the same number ac delco back in. im happy with the results.. thanks guys..