14th Oct 2020, 04:27
What would you consider “too much weight”? I used to haul a small boat in high school with one of these Buick wagons and never had any issues.
15th Oct 2020, 16:07
Of course it's more responsive; in 1989 the 305 used fuel injection, giving the engine more HP.
Why this was never done to the 307 remains a mystery. On the other hand, when the 305 was carburated, the HP ratings were maybe 10-15 higher than the 307. Not much to brag about there. If you ask me, both engines were were good applications for the time. I like the 307 better as far as smoothness and durability.
13th Oct 2020, 21:19
Or consider an Olds 350. The 403 is also a good idea and engine, but was only made for 3 years. May not be easy to find one.
Sorry to hear of your bad luck with the 307. We had an Electra and a LeSabre with that V8; both were strong reliable runners even though you won't win races with them. I've seen a few top out at 300k miles.