I seem to be burning oil in my 355. It doesnt have a ton of miles on it but was built about 20 years ago with the heads being swapped out some years later. Typical street motor, 355, 9.8:1 comp, XE268, AFR 195 (pre eliminator heads), RPM Air Gap and Quickfuel 750VS. I do not see any smoke regularly but have noticed it a time or two during both hard acceleration and decceleration. Just starting to investigate. No big noticable oil leaks from the pan or valve covers or anywhere else. Pulled the plugs today and thought I would get some opinions on what you see. Numbers 1 & 2 seem to be much darker than the rest. Opinions? Thinking compression test and leak down test next.