174/177 supercharged small block, where to start?

Nice setup, BlownHemi!
I think you're talking about Bill Laney casting the manifold.
What belt is in the pic? (16 rib?)

Yep, Bill Laney is awesome and a hell of a nice guy. Bill told me once he showed his Chrysler small block intake the guys weiand but they offered him Mexican money for the intakes so he basically made the to order for whoever wanted them and was willing to pay. Bill did both my B&M intake and my 6/71 setup. I haven't talked to him for a years I hope he's still with us. The belt is 50mm wide but use an 8mm Gilmer style pitch, it's not a sepentine multi rib. This means a pop-off plate had to be added to the back of the intake to protect against backfires. The 162 was marginal for the 360. A 174 is the way to go, but the 250 would be awesome. How do you know of Bill?