Car was running fine, put gas in it now barely runs

[Dogbreath]

1982 911SC was running fairly well, I put about 3-4 gallons of 89 octane gas that I had had in a clean can with Stabil fuel stabilizer in it. It is about 3-4 months old. Now car starts hard and runs very rough.
I did have the gas tank loose and had jacked it up a few times working on wiring. Maybe I churned up some junk that was in the bottom of the tank.

Any ideas?

Thanks

[72 four door]

What type of stabil was used? if the gas was ethanol and you used the red stabil there in lies the problem. Drain the gas and use good gas.

[Dogbreath]

I believe that is the exact combination. I believe our state is 9-10% Ethanol and I had used Stabil red. Do you think it would make that much of a dramatic difference?

Thanks

[Hugh R]

Change the fuel filter as well.

[KNS]

Red Stabil is fine for Ethanol gas, I've used it for years.

I would also start with the fuel filter and some fresh gas.