Question about 1986 Chevrolet Monte Carlo

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Just got an 86 monye carlo ss 305 the carb will not open up under full throtle and transmissin wont go into passing gear, a float was installed in carb and high performance cam had been installed just before i got the car

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They might have missed hooking up the vacuum line for the passing gear when they put the intake back on. There will be a steel line near the firewall coming up from the transmission. It normally plugs into a nipple on the intake behind the carb. If you can't find one just splice it into an existing line, except the distributor line.
The carb problem is most likely a matter of the linkages not being put back on properly, usually on the choke side because it has a lock outfor the secondarys when the choke is on. See if you can get the instruction sheet from the carb kit they used. It will show you what the linkage is supposed to look like when it is hooked up properly. There is also a vacuum switch on the secondarys. Make sure it has vacuum from the front of the carb and that it pulls tight when you start the car and lets off when you shut it off. Hope this helps.

Posted on Sep 06, 2009

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Posted on Jan 02, 2017

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