100 posts, and I cannot tell what is going on .... I've read them all, but there are so many it's easy to lose track.
From what I gather:
the engine starts(or not???) and revs to 5k.
If not, go back to where it did start. You have a couple cylinder heads, maybe one installed and maybe one or two on the shop floor. I dunno.
The 8 plug head will work on any 2.3 if you have an intake that will match the ports, and develop vacuum(sealed to atmosphere even though there are OTHER ports left open).
You only need the exhaust side plugs to work.
The Advance site shows two coil setups for distributorless ignition. Make sure which one you have when installing plugs. The 2.3 system has the plug wires in different spots on the coil than the 8 plug coil(main - exhaust side) which are the ones that get it started and running.
If your engine starts and revs, you have the throttle plate wide open or at least partially open. Your system may have a fail-safe shutdown mechanism that cuts the ignition or fuel when the revs get too high in neutral. I know some do. Get the revs under control, make sure the throttle plate is closed and there are no other intake leaks. If you can't get it started, check the intake for failure to seal, as that would cause uncontrolled engine speed...
tom
p.s. I think a summary of the current status might help in figuring out what's wrong.[
Apologize for the confusion, basically lets give you a quick insight. I've installed a 2.5 head on the 2.3 block and got everything put back together and started the truck, the truck will rev to 5k sometimes and shut right off, to keep it running you have to keep spraying starting fluid in and it doesn't sound good running either, it ran before i did this just needed a new cylinder head gasket, so i had a professional come out to look it over and he put it back on the cylinder head because it made a knocking noise and i did'nt have it tested (stupid on me) and everything else is right, so i'm back at square one and was just gonna buy a re manufactured cylinder head and be done but i want to make sure it isn't anything else that could cause that before i drop coins on that head. I've attached a video for reference as how it sounded with the 2.5 head.
https://youtu.be/Tw5P3O_Jq9I