ok if any of you remember I started a build up last july well its finaly ready. but which carb to go on it? here are the stats:
225 bored .060 cut head for 9.1:1 compression 1.6 roller rockers a comp cams custom grind .500 lift 224@ 50 duration ford valves 1.776 int and 156 ex.(I think) they are the ford 300 valves any way. A really nice port job clifford headers and a shorty clifford 4bbl inatke. A 3.23 or 3.21 rear end and a 2600 rpm stall.
now which carb?? I know I want an electric choke and vaccume secondaries. I have concidered Demon Jr. 525 cfm, Edelbrock 500 and 600 cfm and also Holley 500 and 600 cfm. Comp cams sugested 550 max but that was before the adition of a poirt job and headers so I figure 50 more cfm might not hurt things. Any sugestions? Doc ? Any one?

Unless you're bucking for maximum gas mileage, a 600 cfm Eddy or Holley would be ok, the boosters usually cut down on the actual cfm in the venturies (except in the Carter/Eddy). You have enough Hi-Po stuff that you'll be able to use a 600 cfm carb...the vacuum secondaries when dialed in only will allow you what your mill 'needs'...also remember to get a carb tuning kit for which ever one you choose and be prepared to recurve the distributor to make the best use of your mill...


-D.Idiot

Any of the carbs you listed will be OK but you will have to do some "fine tuning" so it is a matter of using the type of carb. you are comfortable with.
In my case, I use Holleys because I have lots of jets, power valves, pump nozzels etc. to tune with.
DD