Sorry but Im not sure which forum is which really, so this migh be an overpost.
Not exactly new but returning after many years and I recently started to revive my 66 A Code from induced coma.
Im sure this has been hashed time and again but Im pretty unfamiliar with autolite. Ive rebuilt many Holleys and Rochesters and even a few Amals. I currently have a Holley C6OF-9510-M its 600cfm, I got my codes crossed about 8yrs ago when I bought it thinking it was from a Falcon and would be nice for 289. Im gonna swap it for a smaller one but hate the Idea of 599+ for an autolite with a Z in the part code. My current leaning is for a D0PF-9510 its a Holley service replacement 450 i think. I see them often for between 1-200$. I am more torque and economy minded than top HP.
Each side try and convince me why i should buy either an Autolite or another Holley. Ill step back and avoid any blood splatter.
Thanks for the input.

 

I would say neither. Check out the Summit Racing Carb. I have had great success with it right out of the box.