Correct p/n for quadrajet carb 1969 chevelle

[Kramer77]

So I’ve been researching and learning about the ole quadrajet carb. From what I can decipher the correct number for a 69 chevelle L35 engine is a 7029215 I think. But why couldn’t a 7029207 work. For the numbers breakdown, if the 6th digit is a 0,1, or 2, then that designates Chevrolet. And the 7th digit, if it is an odd number like 1,3,5,7,9 then it’s for a manual transmission. Seems like there would be a few options. I have looked up the 7029207 and see all of them staring it’s for a corvette or Camaro or possibly the 350hp motor. The 7029215 seems to be stated more for the chevelle but I haven’t found any reason for one number or the other. Let me know guys.

Thank