Mar 20, 2018 #1 A alex perini Active Member Joined Feb 22, 2017 Messages 29 Reaction score 1 Have a 73 challenger 440 with 4 spd a833 trans was wondering if anyone ran the dougs headers if so any issues or have better heads for around the 500 range ?
Have a 73 challenger 440 with 4 spd a833 trans was wondering if anyone ran the dougs headers if so any issues or have better heads for around the 500 range ?
