Gregg Satterlee used one of the many late race cautions and a lap 34 pass on Boom Briggs to take home the $10,000 first place prize money Friday night at Thunder Mountain Speedway for ThunderFest weekend.   Thirty five entries took time and Boom Briggs was the Integra Shocks Fast time with a new track record of 14.935 seconds.   Satterlee, Matt Lux, Briggs and track champion Jon Lee were the heat winners.