Idk i drove it in his car and it literally felt extremely under powered like maybe half the pull and at like 4k it wouldn't go past it...

Replaced the o2 sensors in his car and crank sensor and it eliminated the problem right before i pulled it then i pulled it and installed it in my 98 with no issues since then minus the alternator going out.

other then that the engine has a recent tune up spark plugs, wires ,cap and rotor.

If the crank sensor wasn't the issue then idk maybe the engine didn't like him then? when i say the crank sensor wasn't there i mean it wasn't there at all not even on the tranny what so ever. not just un pluged

I got no problem what so ever letting you drive the car and feel the engine before you buy it. I'll compression test it right in front of your eye's. Any other doubt? Please just lmk this is a great engine. Just not built for the 14-20lbs i want to be pushing in the near future