Okay I have a 650cfm DP with mechanical secondaries. Anyways I damaged my original base plate while rushing to get my car back together. I see that Jegs sells base plate assemblies for holleys yet only for the 750, 800, and 850cfm carbs. Do they have carb base assemblies for the 650cfm carbs? My brother thinks that the 650cfm might atcually be a 600cfm carb on top of a 750cfm base plate. Is this correct? Can I put a 750cfm base plate? Thanks.

http://store.summitracing.com/partde...rt=PRO%2D67155 says "650-800 cfm double pumper".

Yeah, base plate assy. for 650-800 CFM double pumpers all use the same sized thorttle bores. The different CFMs come from different sized venturis in the main body of the carb above it.

Thanks guys I just wanted to make sure before I made an order. Thanks again.