MustangWorks.com : Ford Forums - View Single Post - Will cooler plugs cure lean running 98GT?

MOD281 · 11-27-1999, 09:39 AM

Running stock plugs still-
pro-m77,shm h-pipe w/cats,svo pulleys,flows,
3.73's-
Bothersome higher rpm pinging under full
throttle w/89 octane,slightly less with 92-
any ideas?

11-27-1999, 09:39 AM	#1
MOD281 Registered Member Join Date: Nov 1999 Location: california Posts: 22	Will cooler plugs cure lean running 98GT? Running stock plugs still- pro-m77,shm h-pipe w/cats,svo pulleys,flows, 3.73's- Bothersome higher rpm pinging under full throttle w/89 octane,slightly less with 92- any ideas?