I advanced it and drove, retarded it and drove but nothing gave me any power on any grade other than staying in third.
what method are you using to advance the distributor?
are you only using to octane sensor? or are you loosening the
clamp and turning the distributor body?
set your dial on the back of your timing light to 0 and see if your initial timing is correct
should see the pointer on the ball if you want to advance 5 degrees set the dial to 5 advanced then point at timing light and you should see pointer on ball.
is your distributor
moving when you give it gas?
when was the last time you checked your valve lash?
