I think the 88 through 92 350 TPI's are overdue for some horsepower. These combos race against the smaller and weaker 305s with smaller cams and valves. In 85, for example, there are three 305 factored at 258 and 263 hp. The 350 is factored at only 260 hp so it's not surprising that they will run faster that the 305. It's not fair for the guys with the 305s that got hit with a lot of hp before the 350 TPIs were running. This is a performance class so don't sand-bag all season. Just accept a few extra hp and run it in the next class up.