No
Oldsmobile used to make a 307 V8, but it has nothing in common with a Chevy V8.
yes
rev the engine to about 2500 rpm's and turn the distributor until you find that sweet spot.
It should be in the back of the engine, just to the drivers side of the distributor.
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305 is the same distributor as a 350 will even fit some big block chevy's.
maybe check for a worn CAM LOB.
Tire rotation, Engine rotation, Distributor rotation, there are several things that rotate, need to know which one.
Yes. Its a direct bolt in.
Not usually.
Oldsmobile used Chevy 305's. 76 350 rocket 77 305 Chevy
Is a 2.8 liter engine a 305?