Right side. I have a lot of work to do on this motor to get it up to par. No major internal changes...gonna keep it pretty stock! A new Holley 750, Weiand Stealth, a little head porting, some headers and replace the nasty cheery bomb glasspack with a Fat 40 Flowmaster! Time and money...time and money! But not as much as I spent on the Mopar!!!!