They vary more than that, leaf springs are clamped on the front, factory shackles angled as per the mopar manuals. I have just recently moved the shocks in front of the axle and vertical. I tightened the extension and comp 4 clicks on sunday and went from 1.43 to 1.41.
Why do you say full tight on ext and what would you do with the comp with that setting ?
I thought the looser the ext, the tighter the comp to keep the tyres planted.
Thanks Mick


69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200#
best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft
best 60ft 1.36