Comments - D&D Y-Pipe, trail port ($500.00), stock head, stock air box, +2 timing key, D&D Power single pipe, and Boondocker for added fuel. This new pipe keeps the great power around the stock RPM but adds 11 hp on top end for better top end. This test was still with stock compression ratio. For above 5000 ft alt. more compression is needed. D&D Head Mod for high alt is $100.00 and trail port cylinders=$500.00. This is a great motor to make big HP gains with out breaking the bank. Twin pipe test and 1200 big bore test will be posted soon with great results. We are taking orders for the 1200 kit, price is $1899.00 exchange plus pipe or pipes and Boondocker.