I have a 1995 chevy astro van with 239000 miles that starts fine and idles fine but when you take off it doesn't accelerate it just stalls out and doesn't die, I have replaced the fuel pump the fuel filter and the catalytic converter but didn't help

idle air control or maybe throttle position sensor? or dirty/bad mass air flow have u checked fuel pressure?

There may be 2 fuel filters on there, 1 in tank or inline and 1 in the engine compartment. I'd start by checking to see if it has a 2nd one first. Is there any check engine lights coming on? Get it read to see what the problem is, usually you can go put a deposit check on a code reader and take it home with you to check non-drivable vehicles. It somewhat sounds like it may be the O2 sensor. Is it EFI or carb?

heres a web page that may help with code retrieval paper clip works well if your dlc connector doent look like this stop dont stick anything in it it will be obd2 which require a scan tool http://www.extreme-check-engine-light-codes.com/GM%20OBD1%20Decoder.htm

obd 2 started in 1996 but some 1995 models may be obd2 hope this info helps