I have a 307 that had been sitting for about 6 years.
Took me that long to get the rest of the car re-done.
Put the same ol crappy 307 back in the car----and fired it up.
No smoke--no noise--
Will drive it til it quits----or the oil leak that developed while sitting gets too bad.
Car made it's maiden voyage onto the public streets yesterday morning.
(now I gotta remove the dash and get a new speedometer---makes a terrible noise)