JTSpeedDemon
2019 Build Off Winner!
oh c'mon the GT40 is a (street legal) race car,
the corvette a (not even really raceworthy) street car
that's not a fair comparision.
I am talking about the two modern incarnations of the GT, both of which are bloody AWESOME!
But yeah, the GT can whoop an equivalent Corvette in any day an' age.

LOL well i want a vtwin in some old 90's car
Quite frankly that sounds stupid.
Even if you make a fully built v twin(which'll be more expensive than getting some sort of used car engine), it'll still be maybe 50-80 HP max, not counting the headache of adapting it to "some old 90's car", and it'll still be underpowered. Probably about the same kind of power as my dad's 67 HP Mercedes 240D.
Not impressive.
Seriously, with an auto 240D, 0-60 is 22 seconds with the slug auto transmission, and 18 seconds with the manual 4 speed.

And my dad's car has the lowest factory rear end available.
Just get an old car engine.