I bought a 77 maverick a few months back and its run great but there is one small issue that has started to surface i took it out for a drive yesterday and noticed that when i let off the acceleration and am going downhill it sputters a little, also it seems to be hesitant in starting up, and when it first starts up and i let it idle it sputters a little nothing major but i was wondering if someone could help before the problem gets too large for me to deal with on my own thanks