Whats really confusing is that this condition manifested itself rather quickly. The engine ran fine after break-in for a few days and then I noticed the temp started to climb slowly during the run so I richened it up progressively but it began to lack power due to the rich tune. Thats when I set it back to 1.5 turns out from bottom and thats when the lean-bog began. The nitro is blue thunder sport 20%.

To further confuse things, I have the Tornado and the shockwave. The .16 on the shockwave is set to 1.5 turns out and the LSN is even with the collar and it runs liked a champ. why would the .18 on the Tornado require such rich settings to operate if there was not an underlying issue?