Top speed on two wheels: 238mph CBR1100xx Blackbird, hardly stock & built for the twisties. Speed noted by a Trooper friend of mine.
Top speed on four wheels: 160-165 1979 camaro hopped up on a 383 built by yours truly.
I now drive a Chevy Suburban 4x4 & a Honda VTX1800...good Lord I miss all that power. That kind of speed and power is truly like a drug...the best kind: Adrenaline in the mainline!