Holley/Demon Carb stumble

Maybe but i might have figured it out.

These are the spare part for the Proform 850 race carb.
https://www.summitracing.com/parts/pro-67201/replacementparts/brand/proform-parts
That's my main body and base plate...........so that must be the metering block to use?
Look and tell me what you think

If i was going to go out and buy a new carb it would be a race 750. BUT sence i seam to be building a carb one step at a time. i think the 850 metering block is my next step.

Still going to tinker with what i have and see what i can do. But really think i should get some Proform metering blocks coming.

As far as racing, if i was chasing points or taking winning a race, at the top of my priority. I would just put my 600 DP(List 6776) back on and live with a tenth slower car.
I'm not. I'm trying to make a consistent, faster carb/car.
Nobody is happy with the ET that they are making and i'm not any different:D

Appreciate your though on that metering block i posted up.