Engine loosing power on acceleration?

Not sure about the vacuum leaks but they've checked all the obvious. As far as a better description, I'm not really sure. It's my husbands truck I've only been in it a few times and the running outta gas analogy is the best I have. It doesn't completely stop running but it maxed out at like 30 mph and that's floored. It used to be when you shut it off for 15 minutes or so you could drive it for another couple miles but now it doesn't matter if the car is cool or not it still has no power.

He took the exhaust off over the weekend and it didn't change anything. A few weeks ago the converter was hooked up to machine at a smog shop and he drove around with it hooked up, pressures fine. I appreciate your help though.

Yes sir.

I'll ask my husband for the exact reading cause I'm not sure but they ruled that out right away.

2.2L s-10 186,000 miles
Truck ran well until the other day, major loss of power and can't get over 30mph. Changed the fuel filter and it appears to have good exhaust flow, so I don't think th cat. Conveter is plugged and I checked the plugs. It idles fairly well but when you press on the gas, it just boggs down, like it's fuel starved. There is no scrader valve to check the fuel pump pressure and no codes. Does this model have a remote fuel pressure regulator? Any other things to consider besides fuel pump?

You might want to clean your carburetor or get a new one and if the carburetor isnt the problem then u might whant to check your coil wires one may be disconnected, broken/bare, or just burnt up.

Does the check engine light need to be on for that cause that was the problem the last time they ran a diagnostic test on it. It wasn't coding anything out cause the light wasn't on. Who would have a scanner? Any shop or would auto zone rent one?

Checked fuel pressure, it's too high, 50 with key on and 60 running.

I have replaced air filter, fuel filter, plugs, wires, dist. Cap, and MAF. My truck acts like it has no power. There's no hesitation it just accelerates very slowly. Any Ideas?

I also had to replace the fuel pump. It completely died on me. I have been have this problem for about a year. Nobody can tell me what's wrong with it. It's gradually getting worse. Please help.

I recently inherited a 2000 Chevy S10 2.2L with acceleration issues in both drive and reverse. From a cold start the engine sounds like its rushing air and has little to no power. After it has warmed up a bit. The engine still lacks power and shakes at a slow idle. On the expressway the truck seems to be lunging while in cruise control. I have never owned a Chevy before and was curious if you had any suggestion on what to fix or try first.
Thanks,
Matt

There is no check engine light on. No codes popping up at autozone