HELP ME!!!!!

So, I have a 1989 Mazda B2200 Ec. Its a 5spd, its carb'd New(ish) fuel filter, runs perfectly fine, up until yesterday... I have plenty of power in any gear below 3,000rpms. Soon as like 2900-3000rpm It basically falls on its face. I lose almost all power. I can still accellerate but it misses like crazy, It doesnt buck or kick or backfire but it just misses. I can floor it in any gear below 3 grand and it runs perfect, In 5th at 40mph floor it runs fine accels fine until 2800-2900 r's and it falls on its face again, If I pussy foot my pedal it will still accel semi smoothly... Wtf is causing this? What are my options? My filter looks clean, I could always get a new one, My air cleaner is brand new like a week old. Oil is good, Plugs are about a year old but only have like maybe 1000 miles on em maybe. carb looks clean, Im stumped...

vacuum advance?




-justin

I was thinkin that as well, BUT how do I test that?

no idea. you got a mazda book? i got one but its in the garage and i have to run through 40 foot of pourin ass rain to get to it.





-justin

Thanks dick! lol Its beautiful weather here, but no more getting off topic, I dont have a book my buddy have a vaccum tester thing, but neither of us know how to use it. lol.

got an extra dizzy to drop in it and try it out?






-justin

I dont, I wish I did, That'd be sweet, But I dont, Im pretty sure the distributor is fine, Cuz it starts right up and idles perfect and runs great, Just after 3 grand it poops

marcus take a vaccume line put it on the dizzy and suckkkk...see if the vac advance moves

but dont suck with all your power. you dont want the advance to fly off. lmao






-justin

Hmm, I can try that, If it does move its fine right?