i got my rebuilt 4 barrel 600cfm Edelbrock from summit racing for $229.. and it is a OEM Rplacement carb and they have all the official numbers to prove it... but if you want they do have replacement Rochesters as well, check out summitracing.com and edelbrock.com. Use the Edelbrock numbers and put them into summitracing for prices.
"Performer Series 600cfm carburetor #1400 is 50 state street legal for ALL 1980 and earlier General Motors V8s (E.O. #D-215-10)."
__________________
91 Chevy Suburban Tonawanda 454 R2500 - SOLD!!! 
04 Dodge Durango 5.7L Hemi 2WD, 24K miles (as of July 2011)
In the past 30 years about 90% of Fords are still on the road, the other 10% made it home.
-------------------
|