[blykins]

Are you familiar with carburetors enough to do some tinkering? It just needs some tuning. Carburetors out of the box can't be in a perfect state for every single engine that they can be bolted onto. I'm sure Roush didn't take the time to dial it in either and the Street Avenger carbs are mediocre at best.

I routinely replace these carbs for Roush customers with night/day performance differences.