Understood. Problem I am now having is that I am doing this with the head installed and the engine in the truck. Keeping the valve in place has been difficult. I have tried using air and have moved on to the rope method. I have had more success with the rope, but the exhaust valves have been the most difficult because it is hard to keep them from moving 1/2" of so. I guess the combustion chamber shape doesn't lend well to stuffing rope into the chamber. Secondly the spring compressor only compresses part of the spring due to the design. It's harder to reach the second groove when the compressor doesn't want to give you full compression.

58' 3200 235 3-speed/OD