It started getting obnoxious to start had crank for awhile several time finally would start. Now it done starting, cranking good and strong has spark but doesn't offer to hit a lick. I can't smell any gas after cranking. Any ideas or help would sure be appreciated. Thanks

This a 4.3?

Checked for codes?

Do you have a gage to check for fuel pressure?....spray carb cleaner into the intake......make sure snorkel and MAF are intact.....try to start car.....if it starts for a second or almost starts, then it'* a fuel delivery problem.......a fuel pressure gage will determine if the pump is ok......other possible problems are leaking spider assembly or leaking regulator or bad poppet valves or bad injector, etc.

A noid light will determine if the injector is getting pulsed.....