I gotta get the old girl's pipe sniffed by the state. My problem is I failed for the same thing as last year :mad: CO @ idle is high everything else is tolerable (passed). I know exactly what the problem is I have no ported vacuum holes on the carb so the advance is hooked to manifold vacuum. Aside from drilling a ported hole in my carb base is there any other way to get around this bullsh*t??? I called everyone and their brothers trying to find an adjustable vacuum advance for my dist and nothing.


BTW its a IH (AMC) 258 inline 6 w/ points the motor is basically new except for the bottom end. new dist, head, timing chain, even carb, everything is good except that one sucky problem (pardon the pun) ...

Any ideas would be appreciated :D :flipoff2:

What happens if you just disconnect the vacuum line to the dist. advance?

If you have to have one in place, stuff a BB inside first.

That'll do the same as having ported vacuum, but you won't get the vac. assist off idle - dunno if that'll change things for the worse or not.

With my recurved distributor I've never run the vacuum advance on my race Scout..

Why dont you try putting some acdetone in your tank:question: Not that I have done it or would condone such devious activity:angel: but I heard thru a friend of a friend that it works well.

Originally posted by Brandonw
Why dont you try putting some acdetone in your tank:question: Not that I have done it or would condone such devious activity:angel: but I heard thru a friend of a friend that it works well.

Like what????

Originally posted by tsm1mt
What happens if you just disconnect the vacuum line to the dist. advance?

If you have to have one in place, stuff a BB inside first.

That'll do the same as having ported vacuum, but you won't get the vac. assist off idle - dunno if that'll change things for the worse or not.

With my recurved distributor I've never run the vacuum advance on my race Scout..

I know but I cant really justify having a dist curved ($1-200???) I am planning on a whole chubby drivetrain in the near future. I dont want ot sink much in the 6 anymore. I thought about completely disconnecting the whole vacuum thing but I thought it would kill emissions somewhere else??? Not worth the $18.50 to try it out. I have an appointment at B and R automotive on tues and they should come up with a fix for it and they let you watch the whole time so you know what you pay for. ;) Anyway if anyone else has any more suggestions please let me know.

Originally posted by scouter77


Like what????

Knew a guy that used to put in a couple quarts of accetone in with a few gallons of gas in his old Dodge pickup. Swared that it always passed when he did it, wich it did. Dont know how good it is for the engine but it burns clean so who knows:confused:

Set the timing to 0* BTDC I heard it helps dont know for sure thow

Uh, couldn't you lean out the idle? it'll run lean and up the NOx, but you said the NOx is okay. Just bump the idle setting back up after you lean it out. Tell me if I'm smoking carbon monoxide here...

Sean