Glitch

Be sure you are getting the Mauro Collari hand tuned engine, because Lamberto Collari Motorsport makes two versions of that engine:

LC12PRO-3E Standard AAC EFRA Turbo
LC12PRO-3E MC Mauro Collari Modified AAC Turbo

Also be sure it is the latest version with the new low center gravity head, because the first engines had the same head as a Sirio, just gold colored.

Engine is ballistic. I TQ'd and won this past weekend at our local championship. Just remember that beeing an AAC engine it needs to be warmed up properly to get the right carburation, it can be misleading when it is cold. It takes more time to warm up than a regular ABC engine. At the start of a heat it will look as if it is rich, but once on temp it rocks and runs like a mad dog.
Another thing; it loves cold plugs (7), it works best with Sirio's own pipe, and it needs to be geared at least one tooth shorter than Nova based engines (power curve is higher). I haven't tried, but they tell me it also works fine with Werk's version of the M.Mielke pipe, because i haven't seen Sirio's pipe sold in the States.
BTW, who is your LHS, and what price are they selling it to you???

AFM