Johnny Dart;1241978
Not true. Look up the differences in Edelbrock manual and electric choke carbs.
The manual choke carbs are calibrated for performance rather than mileage said
Your wrong in the way the that the 1405 is simply jetted richer while the 1406 is jetted lean for a chevy.
That is a mixture diff and wether it gives more performance or not is based on the engine a/f requirements.
They still flow the same.
