I reviewed the Evo .455 TPS 18 months ago, I had trouble getting it to run well, but an email to Evo gave me a promt and accurate reply.

One small adjustment to the carb and the engine ran flawlessly. In fact, I use it often for doing reviews where I need a .46 size 2-stroke.

Here's the review:

http://www.rcuniverse.com/magazine/a...article_id=153