My brother in law has 02 gtp.
Mods#1.9's,zz p stg 1 tb,cai,tune,stock pulley,3"x-haust.
He say instead of using autolites he wants to use ac delco.
He works for a parts store and came up that autolites cross to ac delco part#R42LTS.
Anybody using this?
What should he use?