Here is the idea I came up with and am testing. Let's take a common 600 Holley vacuum secondary carb. Block off the one of the primary throttle blades and the associated air/ fuel circuits. Also the corresponding accelerator pump nozzle. Essentially make it into a 3 BBL. It would then be a 450 CFM with a small single primary for cruising and have a large secondary to kick it in the *ss.
What are your thoughts?
Hi tlowe . . . instead of blocking an entire throttle bore (and re-jiggering fuel flows) why not just fit a tapered restrictor-plate:
Building Speed to dial the throttle area down to the desired CFM? Both the primary and secondary bore diameters could be tuned.
regards,
stock49
