need opions on motor

owned car 5 months motor, is tired i have had a time adjusting timing ,and also have cleaned out carb bowls, it also has electronic ign ,but it seems every thing i try i get a new problem, like the motor idling up and down, whats up with that, firing order is correct, but it seems i cant get i timed correctly, ive tried with gun and by ear, one minute it runs decent/fine next moment ,i got to start it again at redlight, i am just a little frustrated but i know it will come together, tommorow is another day ,im just looking for suggestions i will baby it home tonite, and if i have to i will drive my ughhhh 91 chevy apv to work tommorow .