99 yukon won't stay running

i just had some head gaskets replaced and checked now that i have put everything back on my truck will not stay running unless i hold my feet on the gas i had the fuel pump, distributor and cap replace before all of this has happen also i replaced the ignition coil so can you tell me why my truck won't stay running

Sounds like something was left disconnected or it needs an idle learn any check engine lite any vacuum leaks?

aircleaner assembly must be installed and have no leaks at all to run right unlike older cars. the dist could be off a tooth. i had issues w my spider injector right after i changed my intake gasket. is it giving a code? let us know what u find out please

it was my plugs and wires i had the cap and rotor replace now my #2 cylinder is misfiring but all the mechanical pressure is fine it is electrical i assume you have any suggestions