Stock pulley > Not knowing if your car is knocking on a smaller one + buying a short block after you grenade the one you have from not researching.
Link in my signature helps quite a bit, brohoss.
i have read your thread many time i figured a 3.4 was to small but i was curious to hear opinions on what i should do with my set up and old asked because i have a 3.4 pulley thats not in use.
97 GTP DD, 1952 Ford F-1 Resto Project, 2006 Mustang GT "UnDeR CoNsTrUcTiOn", 02 GPGT SOLD!, 98 GTP Parted/Scraped