I have a completely stock driveline, save the Valve body modification and I have had my baby WELL over 130 infact my needle was almost touching the little pin that it rests on at 0 and I am happy to say that I have NO NONE 0 vibration at any speed, only vibe i have is from braking from that fast. Anywho, Maybe my Jenny is a freak of nature or something but she has always rode smooth.
1988 Lincoln Mark VII
Paxton Novi 1000 6psi kit, 30lb injectors 73mm C&L, MAF converted A3M, gt-40's, Felpro headgaskets, 1.7 Cobra RR's, typhoon intake,1 5/8 shorty headers, off road x-pipe, and full mandrel catback, electric fan, 3.73's, TKO 500, pro 5.0 shifter
372.4hp / 394.6tq 5psi
Rest in Peace Joel R. Bender.
July 30, 1979 - March 26, 2006