To say that Clark’s project bike was an improvement over a stock 350 EXC-F would be an understatement. It had a much snappier throttle response, revved quicker, and pulled noticeably harder than a stock one. It retained the same powerband that KTM’s 350 four-stroke models are known for in that it revved very high and pulled all the way to the rev limiter. These qualities benefited not only in the dirt but also on the street, as getting up to speed when merging onto the highway from a dead stop was little trouble for the modified engine. Although Clark’s bike revved faster than stock, it retained the stock 350 EXC-F’s flywheel effect, meaning it didn’t rev as fast as an SX-F or XC-F model, but was less reluctant to stall and required less clutch work than a stock 350 EXC-F at low rpm, which furthered the dual sport’s ability to excel on the tight, single-track trails. The project bike’s engine was a night and day difference than stock, and all for the better.