i just got a 84 gp with a stock 350 and stock quadrajunk carb. yesterday it ran, but i almost had to floor it to get it to get home. it smelled like bad gas too. then today it ran outta gas so i put a few gallons in the tank and now it wont start! im thinkin the carb is bad being that it stayed started but i had to damn near floor it to get it to go. what is this? all responses will be appreciated.