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ive got a Holley 600 cfm 4 barrel on my engine. The 2 barrel that originally came on the engine was a Carter BBD 285 cfm. The conversion formula is cfm x 1.414 Does this mean that my 285 is actually a 403 cfm carburetor?

planning on running a (580 cfm total) dual 2 bbl set up. this will need a strong vacuum signal to work well and from what my buddy says...i should run the sp2p manifold . he says i will get better mileage, more low end torque, and will have a power band from idle to 4000 rpm. i cruise it and...

I had the holley 2280 2 barrel on my 318. Started leaking around the throttle shafts. i decided to replace it with the carter bbd low top. Funny thing i noticed about this carburetor is that the fuel pump diaphragm has a spring on the top and the bottom. so when i got the carburetor the...