KB Carbs Circle Track Racing Carburetor - Gas - 4150 Series billet baseplate and metering blocks.
Available in the following:
1.250 - Slick track carb - designed for open engine mods and late models on slicked off tracks.
1.375 - 750 cfm - good on 350-383 limited style engines.
1.400 - 850 cfm - good on wissota style and open engines up to 415 cid.
1.450 - 950 cfm - open mod and late model 415-440 cid.
1.250-602 crate (IMCA legal)