Help Picking a Carb: SBF in SS or GT

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I'm working on a 68 Mustang coupe with a 302 and have hit the dreaded Carb Wall. The car had an Edelbrock on it when I got it, so I know I have to replace it. The Accepted Carbs list is hard to read. at least for me. The Tech out here says I have to have a factory carb in the Replaces column in order to use one of the Edelbrock or QF units listed. I also read here that you just have to match the cfm, throttle and venturi numbers. Which is correct?

The NHRA stock carb for my car is an Autolite C8ZF-D which MustangTech says is an Autolite 4300. Under the Holley tab, there is a 4150 listed as used on the 68 Mustang GT 350. NHRA lists the C8OF-D Holley for the 68 Cougar 302 for a GT build. That's Holley list 3796-1

On the topic of "dash numbers" ^^ the first page of the Product guide states that " All Holley Dash Number carbs" are accepted, so what's a dash Number? The Holley catalogue has a number of carbs, both street and race, listed as nnnn-1. Are those "dash number" carbs?

If I just need to match numbers, the NHRA is no help. Note 15 for the 68 Cougar is 1563X1563/1250X1313. Is that 1.536 (1 9/16), 1.25 and 1.3125 (1 5/16)? I think I just figured it out in this post...

Any help would be appreciated. I've been a fan for a long time, but this is my first build. Why Super Stock, you ask? It's where the cars are.

MustangTech Carb Page

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