I am wanting to change out the carb on my mildly
built 360 Duster. Right now I use a 600cfm Edelbrock #1406....I want to upgrade to something better! The engine is mostly stock: dual plane
Weiand intake,1 5/8 headers with 2 1/2" dual exhaust,Firecore electronic ignition,hydraulic "340" cam/valvetrain,904 auto transmission that is all stock except for deep pan and shift kit.

I am thinking of either the Street Demon 625 cfm
"phenolic plastic" carb...or the Holley Street
Avenger 670 cfm carb..I would be using electric
choke with either one. Anyone have any experience with either of these two carburetors, or advise to give? Thanks!