I am living in Washington DC and I know that my "F" engine is in bad shape. It runs ok, even though it has started back firing and sputtering. Mostly the sputtering happens when it is cold and the backfiring happens when the engine is hot and I am letting off the accelerator. The engine has a very noticeable loss of power and feels like it is missing when you step on the throttle. I need to know if there is anyone in MD, PA, VA, DC that is a good "F" mechanic? I don't want to sink a lot of money into this engine, but i want it to run for another year until I can get a swap figured out. Help!! Thanks, Ryan.