Been persuaded to go to a rolling road meet with it on the 7th of July.
Rated 170HP crank when new
Engine originally built 28 - 29 years ago
200,000 miles on the bottom end
70,000 miles since the head was re-built
Tappets freshly adjusted
Good service history
New oil, filters, plugs, fuel, etc
Doesn't use or lose any fluid
100% stock mechanically
Possible drawbacks - Injectors have never been serviced, though I have run injector cleaner through the system a couple of times... And it doesn't have an optimal exhaust setup.
Place your bets. It feels really healthy so I'm going to guess fairly close to original rated power. I'll say 159HP.