Im going to be swapping heads on my dart blocked 347 shortly, and that means I will have to adjust the valves afterwards. Since my harmonic balancer doesn't have timing tape all the way around it, I was thinking about using my Snapon Techangle ATECH3FR250B, to rotate the motor 90 degrees to adjust the next set of valves. Does anyone see any problem with this method? It wont exceed the max torque capacity of the torque wrench, so it seems like pretty convenient method.