spark plugs?
I'll probably changed mine yearly as part of a major maintenance. I just use the Champion Copper plugs, so they are like $1.50 each. No need for platinum or iridium - they are for long service lives.
SSmokin99, 60K is a good time to change them and any other consumable parts. I think the factory 30K checkup is BS, but you have to do them (not necessarily at the dealer$$$) to keep the warranty intact. As a hot rodder, you check all the fluids frequently anyways, right?
Jim
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Nothing inherently wrong with the platinums. I few people I respect suggested or wrote about Champion Copper, gap between .025 and .035 depending on boost and ignition, and 1-3 ranges cooler, depending your car - climate when you drive, boost, etc. I went to Champion RC9YC - three ranges cooler because the parts store stocked the 9 and the 12 (stock heatrange). No problems, but I'm in a mild NorCal climate (45-100) and rarely drive the hotrod when its under 50. No fouling problems. About 7.5# of boost on a 383 with FMIC and MSD6A ignition. No pinging at all on 91.
Jim
I'll probably changed mine yearly as part of a major maintenance. I just use the Champion Copper plugs, so they are like $1.50 each. No need for platinum or iridium - they are for long service lives.
SSmokin99, 60K is a good time to change them and any other consumable parts. I think the factory 30K checkup is BS, but you have to do them (not necessarily at the dealer$$$) to keep the warranty intact. As a hot rodder, you check all the fluids frequently anyways, right?
Jim


