Small Block Heavy Duty Alternator Option

[jmd66fb]

Hello!
I need a little info on a p/s pulley for a 65-68 289/302 with heavy duty alternator (dual belt drive) option and p/s (no other options). What would be the belt configuration? Specifically what p/s pulley is used in that application? Ive read that the p/s pump would have a dedicated belt run off the forward 1/2" groove of a 3-groove crank pulley. If thats the case it looks like the p/s pulley would need a forward offest. Any info from those that have looked at hundreds of original Mustang small blocks would help.
Thanks !!

[Krelboyne]

I think power steering always runs off of the 2nd belt from the back.

Not sure of the belt routing, an engine assembly manual would show you.