Have all the specs for the ARP fastners now w/Josh.
Heads should be done this week, Pistons are app 1 month lead time as they are custome made to order at this point.
The EFR's are great swaps for the STS as long as all is modified correctly .
Here is the sump for the oil return/scavenge. No issues w/pressure build up using a 90* fitting off the trubo drain with this: