Overlap on a turbo car is bad unless it has varieble cam timing. I know this dont apply to us, over lap spools the turbo real quick and then through the variable timing scale it back for the mid range and top end. I wish I could own a 996/7 twin so I could put this into affect.
(Sory for the interuption, I thought that might be interesting)
Im running GT2 cams in mine, but have no experience camming Cis cars. GT-2s are nice.
86' 930/GT-40R Sold
94' Rustang GT daily