Hey guys, Im looking for some opinion on what plugs to run in my Aluminum headed stage 2 motor. I am running a MSD ignition, 11:1 and burn 100 octane all the time. Dennis
John Zerucha and I have had perfect luck with the NGK V-Power..... Stock# at the parts store is 4554 which is a R5671A-8 if memory serves correct.
I love the V-power plugs. I don't have Aluminum heads (yet), but I use the NGK UR-5 in my irons, and have had real good luck with them. :TU: NGK highly recommended. Not looking forward to the part #'s for aluminum heads :eek2: UR-5 is real easy to remember. :grin:
Hi Dennis, I run the Autolite AR3934. It's a nice racing plug :3gears: . You now have a few to choose from. I just wanted to put my 2cents in :Comp: