If, and it's a BIG if, the owner can control the right foot, the huge output engines can last as long as the more mundane ones. The problem comes when the owner who takes it easy and only takes the power up occasionally lets someone else who THINKS they know what they're doing get behind the wheel. Like the video a few years ago where the owner of a brand new Mustang lets his 10 or 12 year old son behind the wheel. The kid promptly starts it in gear somehow and drives the brand new car through the garage and out the back wall.
A friend has his fathers tri-power Pontiac that dad bought new. The intent was to race it but it mostly sat with light street use. He talks about restoring it but probably will be like his dad and never get to it. It still runs and drives just fine. The tin worms are getting to it, but the riginal drivetrain is still intact. Even the priginal clutch plate.
Honk if you love Jesus.
Text if you want to meet him.