'86 305TPI I have had it for 2 years. Went down to store this morning and everything ran fine. Girlfriend tryed taking it to work and it died. So I went out to find out whats wrong. It will start, but I try to give it gas and it chokes, starts nocking in the lower end but I can release the pedal and it will idle just fine. I can get it to rev if I very slowly give it gas. Already replaced fuel filter and air filter. Please help!