I recently got a 88 supra 7M-GTE of course, the car runs beautifully but had a valve tap. everytime the car got on a 20 degree angle it would run quiet. I started to do a complete tuneup because the car has been sitting in a garage for over a year and not touched. Everything was clean enough to eat off of, until I went to change the spark plugs. The plugs had not been gapped originally and were extremely worn, the middle too are covered in burnt oil. I am familar with honda and mitsubishi but not supras. How do I begin to solve this problem, all the info I keep getting is leading me in circles.
