The test stand is the way to go for testing a motor. leaks were easy to take care of as soon as they happened. Nice idle at 1000 rpm and 40 psi oil pressure at idle. Blueprint block with Dart pro 1 platinum heads, comp cam roller rockers with 1.6:1 ratio gives the valves .543 lift.Blueprint rates the motor at 430 hp with their heads but the Dart pro 1's have better flow and 200cc runners that are moved to avoid the valve guide running through the middle of the port
