While you are working on the rear of the carb that you just paid big bucks for, check and see
if the mighty demon has a rear power valve for me.
If it does, take it out on your drag car, Larry.
Put a plug in and go up on the jet sizes on the rear about 8 numbers. The power valve if left in will suck air long before the jets without extensions will. Good luck. Hopefully no trash
in your new carb. Tom V.