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Message: <blockquote data-quote="gw77" data-source="post: 1586832" data-attributes="member: 38024">Hey all,Long story short I've got an 88 RX7 with a 95 Mustang GT 5.0 motor that I don't know a ton about. Giving it the once over this spring with some new belts / plugs / wires / fluids / etc and could use some guidance. Car has a twin GT35R setup running 5psi. I was also told it has a "built top end" (springs/retainers) and a BC Stage 3 cam. (I can definitely hear the cam so that much is true.) It also has an MSD distributor. I come from turbo Focuses (MK 1.5), Subarus, and RX-7s (rotary) so not quite sure what the norm is in terms of what plugs to run, especially on a modified setup like this. My go-to on those platforms is typically the "one step colder" NGK iridium option.Is that the move here? And if so does anyone have the part number? Thanks a million for the help.</blockquote>