Thats the strange thing Joecar the logged flow rate is the same and I see a difference in MAP 44 kpa then 37 kpa both at idle. Got roped into working this weekend not sure what I'll be able to do. I need emissions and my tags are now expired.
2002 ws6 stock short block
GMPP cnc LS6 Heads 11.4:1 cr
.576 i .581 e 116 lobe
D1SC @ 10#
723 rwhp 654 rwtq on E-85