Worked on the 6.5 today and got all the valves adjusted . And me and my cousin put on the valve covers intake,ip injectors,which I did a quick pop test,all were 1950 psi. Also put a flywheel and starter on . We set it on wood blocks and had it running on the floor Totally impressed . Smoothest running 6.5 I ever had ,and extremely snappy,not at all like my 6.2. We used kerosene so it would start easier,and only hooked up 3, 24 volt glows and the shop was close to freezing temp. Oil pressure was over 80 psi at idle .