NJFBOA - Home of New Jersey's Camaros and Firebirds - View Single Post - Bosch Platinum+4 vs ACDelco Platinum Rapidfire spark plugs!

edpontiac91 · 03-13-2010, 05:51 PM

I installed the Bosch Platinum+4 plugs in my 350 '91 Formula about several years ago. I have put on just a couple of thousand miles and checked them out yesterday. The car has been running fine, but on the four electrodes, 2 of them were dark brown and 2 were light tan. I am thinking off just replacing them with the AC Delco Platinum Rapidfire plugs. Anybody here have any comments about how they run or did you notice any difference? I also have an MSD 6A box with the Blaster Coil.

03-13-2010, 05:51 PM	#1
edpontiac91 Join Date: Aug 2007 Location: Piscataway, N.J. Posts: 1,729 iTrader: (16)	Bosch Platinum+4 vs ACDelco Platinum Rapidfire spark plugs! I installed the Bosch Platinum+4 plugs in my 350 '91 Formula about several years ago. I have put on just a couple of thousand miles and checked them out yesterday. The car has been running fine, but on the four electrodes, 2 of them were dark brown and 2 were light tan. I am thinking off just replacing them with the AC Delco Platinum Rapidfire plugs. Anybody here have any comments about how they run or did you notice any difference? I also have an MSD 6A box with the Blaster Coil. __________________ 1991 FORMULA 350-GONE BUT NOT FORGOTTEN 1 of 1,197 with L98 Option/13.79@100 mph 1994 25th ANNIVERSARY TRANS AM GT -1 of ONLY 2,000 made/ Only 128 made with a *HURST* 6-Speed Manual and 91 with T-Tops and Compact Disc/ K & N Filtercharger/Magnaflow Performance Muffler/Air Foil- ORIGINAL MINT Arctic White Ultra Rare SURVIVOR. DAYTONA 500 PACE CAR Decal Kit! SOLD: 1989 Turbo T/A in 1991 it ran 12:18@115 mph