A couple of good friends of mine have turbo gm cars that run deep in the 8's and they use PTC.Since they are next door in Alabama I am ordering one for the Hemi after I get a dyno sheet.
'33 Plymouth 5 Window Coupe Blown Aluminum HEMI w/bolt ons (under construction)
'69 Chrysler 300 Convertible 375 HP 440
'71 Plymouth Duster 360 W/EFI (Wife's Ride)
'12 Ram MegaCab Dually 6.7 Cummins