Ok all, this may be a silly question... Here it goes anyway.
What color should my exhaust stains be? Left side is mostly gray to white. Right side is much darker. Is that because the breather is on the R side and and probably puts a little oily mist into the slipstream from time to time? Is the fact that they are different a cause for any concern?
61 250, converted to IO-
540, Eagle XP cowl with dual exhaust.
Jim