Carter to Holley...

Cuda416 said

So the 12.5g unit will work just the same? If that's the case, that's great to know. I was under the impression it would somehow alter the function. We'll test the float and eliminate that variable.

Thanks

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12.5 gram float will work. The key to the 1920 is float level. Rough and dirty is 1/4 inch from the top of the float to the top of the float bowl with the carb held upside down. You can use a 1/4 drill bit as a measuring tool. After dry measuring, you run the car and pull the "power valve" and measure the distance between the top of the float bowl and the level of the fuel in the bowl. Setting a little low is better than high in my opinion.