I have a 95 Contour SE. It starts OK, idles just fine. When I start out it has no power and appears to be missing. It does not feel like it is hitting on all six cylinders. I am thinking new plugs and maybe wires... These plugs have 50,000 on them. The originals only lasted 45,000 before a miss developed. It started to knock a while back so I boosted the octane to the middle grade. Suggestions...
No lights or codes..