1985 GSL-SE - Sat for a long time

[BoostedFC]

Well here is a option you may use "ATF clean out" by putting a few ounces in the leading spark plug holes you can release the motor if it's carbon locked. ATF will help with the carbon, but it is corrosive & can damage seals if used too many times or left in the combustion chamber. The idea is too get a couple ounces in there & either hand crank the motor or bump the stater to get the ATF moving around to break down the carbon. Change your plugs for I'm sure they will be fouled. I would definitely change all fluids assuming that you didn't store the car dry.