Moved-To-TN

Hi new owner of a 1985 and starting to round up tune up parts and came across some ACDelco #1 RAPIDFIRE on eBay 8 for 26.00 bucks free shipping. seamed like a good deal, anybody try them? He had 3 more sets left if anyone is interested.
https://www.ebay.com/itm/Set-Of-4-AC...72.m2749.l2649

gpierce

I have used them before, no real difference to standard plugs but they work fine.

xrav22

My 85 has never run better with the NGK plugs put in.

3D-Aircrew

The platinum spark plugs will last longer but have a HIGHER resistance than the copper ones. The copper ones are better performance but don't last as long. Just put a set in today to replace some fouled platinums noticed an instant better MPGs.

Moved-To-TN

as long as no one had bad experience with the rapidfire #1 I think at 26 bucks a set I will give them a try