Makes knocking/rattling noise when steping on the gas and then stalls out

It might be a blocked injector is it making a knocking noise or loud rattle then look at testing them.

probably not fuel
Check for restricted loose or plugged cat.
Check for knock sensor signal.

If this vehicle was driven without oil, the rattle or knock you hear is more than likely a damaged main bearing or rod bearing...sounds like its time for a QUALIFIED PROFESSIONAL to listen to your engine run and give you his opinion... Good Luck!!!

if the noise is coming from the bottom end of the motor then you have either bad connecting rod bearings or bad crank bearings.if when you snap the throttle you hear a double knock then its connecting rod bearing if not then its crank bearing.a collapsed piston can sound low in the engine and its usually a dull knock noise.if you have the engine running and the noise is there and you pull off one plug wire at a time(and reconnect it after checking) and the noise goes away or mostly goes away with the wire unhooked then the cylinder that the noise changed is the cylinder that has a bad piston.

No it isnt a knock sensor the knock sensor job is to detect a knock noise and ****** timing. The knock that it is looking for is from octane or fuel or pinging that creates N0X s. A pollution gas. The knocking noise that you are hearing is different. If it is a multiple noise ar a rattling sound that will be the valves. There are other noises like a piston knock this knock is a sharp metallic noise, If the knock occurs only on acceleration that noise is a crankshaft noise. You need to check you oil level and make sure it is corrects. Look at the oil condition do you see silverish or whitish condition,is the oil deep black.

Humm, give it some time. there are upper cylinder cleaners, but I worry about converter damage, and oxygen sensor damage. The lower the octane, the hotter and more masssive the burn, exactly backwards from what you would think, but higher octane is slower burn and av.gas is really, really slow.
Ford has had slow to start issues that traced back to drivers using too high octane....

Still, if it keeps pinging, you may need to run higher than spec octane.
I would have thought that your car would have knock sensor that would trim this issue...

Sounds like crappy gas. The 289 may not like pump no-lead and the rattling sound you are hearing may be pinging / knocking.

This is a rod going out.

Check your converter on your exhaust when it's running and see if the noise of rattling is coming from there.If it is you have a plugged converter,it's broken up and in piece's which will make noise and no power especially when calling for power.Be sure to let exhaust cool before repair is done.If the engine is making the noise like a knocking sound you should bring it to have it checked.Hope this help's.

have they checked front c.v. joints, as far as knocking noise it could be several things.