What about iridium plugs in a 502 Mag MPI ?????????
#21
Registered
Thread Starter

Thanks for all the comments and info. I got the original Delco plugs MR43T and now I have some confusion with the gap.
The engine plate says .035 and the tune up info says .040 for the gap. Has there been an update on this 97 502MPI mag?
Which gap should I use?
What is the timing procedure for this engine?
TIA
The engine plate says .035 and the tune up info says .040 for the gap. Has there been an update on this 97 502MPI mag?
Which gap should I use?
What is the timing procedure for this engine?
TIA