[Jahred]

Excaliber - Sure sign of something wrong? Can you expand on that?

I think the engines fine, but am concerned about leaning it out. I have not done any adjustments (514) in couple thousand miles......however,

It runs fine with either of two aircleaners on it. I think Fixit's comment about airflow accross the top was probably accurate. But could be wrong. Engine just seemed to run choppier with no air cleaner.

If you have any more specific thoughts, please share. I do remember as a kid, that the old 390's and all my buddies with their 383'2 and 318's - all those engines sure seemed to enjoy having the aircleaner off..........