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Old 03-01-2026, 07:49 AM   #11
Ziggster
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Join Date: Aug 2018
Location: Ottawa, ON
Posts: 1,378
Default Re: 2x2 on 8BA flathead

Quote:
Originally Posted by 38 coupe View Post
The question not asked: what distributor are you running? The stock distributor works very well with a stock single carburetor. As soon as you use dual carburetors you need a different ignition advance setup. You cannot connect your stock vacuum advance to manifold vacuum, that results in the reverse of the ignition curve you need.

Also, Innovate makes a clamp on O2 exhaust adapter that you can stick up the tail pipe and use without drilling a hole in your exhaust system. It works well as long as your exhaust system doesn't leak. I use one in a portable wide band setup I have so I can check carburetor adjustment without permanently adding an O2 gauge to a car. Search "Innovate O2 clamp on adapter" and you should find it offered by several different vendors.
I’ve never heard of this before. Could you please explain why?
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