I have a 1987 supra. I declare it as a piece of shyt. But its mine... Anyway my car started to studder like it wasn't getting enough fuel. I would spray some throttle body cleaner through and acces. outlet in my ic pipe. and it would clear up. Then it would be fine until I gave it gas. When I held it at any rpm it would clear up. It did that for a while. But now no matter what I do the car seems to sound the same. I cleaned the injectors. installed a aeromotive fpr. Changed the exhaust manifold gasket. I had a very bad leak. finished that and its still the same. I had the car running and i took each wire off one at a time to see if its getting spark. I know its kinda stupid. every cylinder was getting spark but it wasn't all even. ????. I have no clue anymore. I have some mods done to the car also. But I never had any problem with them. the motor has about 12000 miles on it. I just need some helpful advice. i'm lost. all thoughts are welcome