Thread: small block tuning

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[i]This may be a dumb question, but what is the best way to set the idle mixture?I too have the 1406 but manual choke.Not sure if this is the problem but I would like to double check.I recently rejetted and changed the metering rods with what edelbrock recommended when I moved to mich. from wyo (dramatic elevation drop) if that helps.It just seems that every time I fire it up it's running differently......damn gremlins!! [/B]

Hook up a vacuum gauge to your carburetors passenger's side vacuum port. Set the idle screws for the highest vacuum possible.

How dramatically did you change the jets and metering rods? You went from what to what?

As to adjussting the edelbrock carb im not sure at all as i am used to holleys but the guys at the speed shop where i bought it told me it should be good to go right outta the box yeah right.


Thanks for all of your suggestions rumrumm I just bought a mallory ready to run hei distributor with adjusstable mechanical and vacumm advances. Will try it tonight and see where it gets me. Will keep ya posted.

If it runs different every time, it could be the advance mechanism is sticking, changing the initial timing.

Installed the Mallory hei disstributor and low and behold she fires first time and it runs like a charm in gear as well as neutral
yahoo laid 2 giant strips of rubber halfway acrosss the parking lot
now I just need to retime the beast and adjust the carb and vacuum advance and all is good with the world. Thanks for all the help you guys gave me and if i can return the favor jusst ask.