Thread: 20+mpg small block with carb.

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Originally Posted by Don Shillady

I am using a stock stall converter at 1650 rpm so that is another worry, the stall rpm has to be less than 2000 rpm as well.

Don, that's the STALL rpm for the converter. It will only slip at that rpm when you have the loud pedal to the mat in DRIVE with the brakes locked. If the converter slipped at that rpm all through the range, millions of grandmas would be at their dealerships, raising hell about engine noise on the way to bingo.