Is this Demon just junk or am I just junk at dealing with it?

Thanks for the info. I read up on the power valve myth more. Wish I had of known that 35 years ago, when there was no Internet, and all you had was the holley tuning book.
I’m kind of a late bloomer myself when it comes to tuning carbs, but with forums like this along with books if one has the desire to learn its really a cinch, for me better late than never. Still absorbing the wealth of knowledge. I’ll tell you one of the best things of having the PV timed correctly for me is getting on the primary throttle only under various load scenarios and feeling that valve come into play and the power thats instantly “now” :thumbsup: