Hello people, new to board and had some questions. Well, I have a 1990 iroc-z that sat in my garage for about a year. Finally got it back out but is not performing the same.Before its hybernation the car ran super hard. It's runnin nothin like before. What should be done? Anyways, lookin to sell car but would like it to run like before just to have anyone interested satisfied.

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1990 iroc 350,shift kit,accel ignition,3.70 gears,airfoil, and a few other mods

 

check the computer for codes. give it a good tune up. cap ,rotor, plugs,wires,fuel filter, air filter ect. check tps voltage. you should probably drane the old fuel if its been in there since you put it in storage.