SuperCoupe
Registered User
I have a 90 SC 5 speed that has a Mac cold air, full custom dual exhaust w/a pair of Borla's and the rest is basically stock, but it runs really rich...or so my mechanic tells me. Any suggestions on where to start looking? I think I'm going to put a new air filter on it in hopes it might help. The problem is I never drive the car. It sits in my garage year round because I have a work truck, and a GMC Jimmy I use in the winter, and summer to pull my boat. I'd say I've put less than 20 miles on it in the last 5 years. I bought a new battery I need to put in, and 5 gallons of V Power to put in my tank. The last time I started it, it ran extremely rough, but I'm hoping it's because my gas was very old. I know having ethanol in our gas (no where in the state to get non-ethanol gas) is certainly not helping matters even though I use K100 ethanol treatment which is supposed to all but eliminate water. I used to have a guy who lived close by that would work on it, but I don't know any other mechanics that I trust enough who will willingly work on it. I also have stock exhaust manifolds that were bored out, plugs were changed a few years ago, but they have basically no mileage on them