My little Brat has picked up a cough. It runs just great all through town and on the highway, however when I try to up a hill it starts to miss. The steeper the hill the more it coughs. I looked for vacuum leaks and found the vac advance was bad and replaced it. Still coughing up on the hills though. This weekend I am going to replace all the old vacuum lines, new plugs, cap and rotor and do the timing. My question to the board is this; is there anything else I should look for? Any typical problems this might fit? Thanks to all who take the time to look!

If it´s Carbed (With the Hitachi I Supose) it may be the Secondary Vacuum... Maybe it is Disconnected, or Maybe it isn´t Workin´ Properly...

I Suggest to do all what you said you wanna do, and if Problems Persist, Check Carefully the Secondary of the Craptachi Carb.

Good Luck!

Sounds like clogged fuel filter(s). r/ PK

I second the clogged fuel filter problem. Replace both (there is one in front of the tank and one in the engine compartment). Also to check if the carb is operating properly just pull the cover off the air cleaner, start the car and rev it up to see if the secondary opens. It should be opening toward full throttle. Hope this helps some

It could be crap in the carb.

I also agree about checking the fuel filter. It may also be a weak fuel pump causing this trouble.

Well I was finally able to replace the two filters and it did the trick. Thanks to all who took the time to help!

Good deal. Thanks for the update.