Hey there im planning on swapping my cracked 302, to my windsor 351 with AFR heads, forged pistons, huge cam f-303 if i remember correctly. Made about 365 horse to the wheels on the last owners mustang with a manual tranny. I was wondering if my car will have trouble idling because its an automatic? Because i know AOD's take up alot of vacuum, i was wondering if there is any other way to keep it from idling like crap other than changing my cam shaft??? Any help is appreciated. Thanks