J.R., Matt and Jason at Victory Engines in Marshall, Mn. just did a new Dart SHP for me.
The priority main oiling is great. The lifter bores come undersized and need to finished honed to the appropriate size....a good feature. There is a balance between between lifter style (where the oil hole is relative to the band), pushrod cup oil hole diameter, pushrod oil diameter, etc. so you don't get excessive oil upstairs.
I got my Dart from CNC Motorsports in Brooking, SD
http://www.cnc-motorsports.com/
I'm sure the Bow Ties are great, as well. -Al