I own 1992 pontiac firebird, car cant start now, so I changing spark plug and wire, I bough some v-power NGK UR5, and wonder what gap should I set too, my car is 3.1l and complete stock. and torque . thansk

 

the overall feeling about our engines, is get the stock AC delco plugs, those are the best for our engines. if you havent installed them yet, return them and get the stockers. youre just wasting $$ on the more expensive ones.

edit: for the gap spec, it should be on the tag on the underside of the hood or where ever it is, i havent seen under the hood of my car since august, and its 2.5 hrs away, otherwise id check for ya. the AC delcos should come gapped for our cars and ready to put in though. whenever ive bought them, and i check the gap, theyre right on.

 

Gap is 0.045. Go get a set of regular AC Delco.