I bought an 03'YZ295 with an Eric Gore 295 top end awhile back. It didn't last long before the plating between the main and boost ports flaked off. (very narrow). It was warranted, and Millenium made it right with a new cylinder. The thing runs, starts, and idles well, (after much jetting). But has never made a lot of horsepower. I,m not needing a lot of power as the thing was ordered to be a pump gas trailbike. I recently took a compression test and only got 175 PSI, is this correct? It has the double headgasket, and takes a good boot to start, (more than stock 250 that had 210 PSI. The power valve was observed working through the L.S. vent cover hole. It has an FMF SST pipe, per Gores original setup. It also has a 12 oz. flywheel weight. It pulls down low, but will not "bang to the bottom" without stalling, like a well tuned KTM 200 that I also own. Experimented retarding the timing, incrementally, but it justs smoothed the mid range a hair, but it never really had a hit in the first place. What gives? A stock 250 will run away from it.