f-350 Wont start
 

hi,
I have a 1993 ford f-350 with a 460ci. it is getting fuel and spark but wont start. it sat about 2 months but i started it about once a week then all of a sudden it wont run. i replaced the rotar and cap and the saprk plugs and it is getting 42psi for fuel pressure. it almost wants to start at times and a couple cyclinder will pop and fire but it wont completly start. Any ideas?:confused:

Did you replace the wires as well.. ?