1. What size thread are the two studs on the bottom of the pump? Previous owner stripped one and did not install the second one. 2. The timing marks are about a 1/4" apart from each other, I think the owner pulled the pump, had it rebuilt and just installed the pump. The pump mark is 1/4" to the left when looking at the front of the engine. How advanced do you think the pump is? The truck smokes like crazy, smells like diesel, and idles like sheot. Thanks homie's!