i looked at the same deal, haven't talked to a machine shop yet but i have a 440 crank that's already been machined for a lowdeck. it's gonna need a little clean up on the journals (very light surface rust spots) so was thinking to 2.20 rod pin and 3.90 stroke.

but, i'm not sure for a mostly street motor, idling in traffic and the sorts, that i would feel comfortable with that rod side clearance...