Runs but studders at low and high and have to turn over for 10 to 15 sec to start
 

I will try and start it but have to turn over for 15 sec or so and it will fire then when i take off it stutters until it shifts to 2nd gear and run fine. When i get to about 3 to 3.5 rpms it starts stuttering again got a different upper intake cover with all the electrical and valves (from salvage yard and took them all off and cleaned them except for the tuner valve). It ran perfectly for the ride home (7 miles) and started the samething again in the morning. New injecter spider and fuel pump and filter. New spark plugs and wires and cap were put on also. All done about 2 months ago. What to do?

Have you done the fuel system test to verify the fuel pump and regulator are not failing ?...Do you have access to a scanner that can do real time ?...a road test with such scanner may help pinpoint a problem.