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Chevy Carburetor Build - Custom Carburetion

We Build A Blow-Through Carb For The Procharged Small-Block In Project True S Street.

By: Dan Ryder, Mike Harrington, Photography by Mike Harrington
  • Small Block Chevy Carburetor Build
    Not a chance of them leaking or moving now.
  • Small Block Chevy Carburetor Build
    The throttle shaft is now too large to fit with the new seals. Measuring in at .368, the shaft is machined down to .350.
    Small Block Chevy Carburetor Build
    The throttle shaft is now too large to fit with the new seals. Measuring in at .368, the s
  • Small Block Chevy Carburetor Build
    If this was not performed, the seal would rotate within the shaft rather than seal on the actual shaft arm.
    Small Block Chevy Carburetor Build
    If this was not performed, the seal would rotate within the shaft rather than seal on the
  • Small Block Chevy Carburetor Build
    Now that all machine work has been completed, the newly revamped baseplate is reassembled.
  • Small Block Chevy Carburetor Build
    It is interesting to note that there is a new throttle linkage hole for two possible throttle positions. The first hole positions the throttle for a more street-friendly application, while the second is more aggressive. When the primaries are open at around 15-20 percent in the more aggressive position, the secondaries also start opening.
    Small Block Chevy Carburetor Build
    It is interesting to note that there is a new throttle linkage hole for two possible throt
  • Small Block Chevy Carburetor Build
    On the main body of the carburetor, The Carb Shop uses specially made high-flow boosters that will move larger amounts of fuel, which is required to feed the need of a blower mill.
    Small Block Chevy Carburetor Build
    On the main body of the carburetor, The Carb Shop uses specially made high-flow boosters t
  • Small Block Chevy Carburetor Build
    In this photo, O.J. is wedging in the new boosters.
  • Small Block Chevy Carburetor Build
    To make sure everything seals perfectly, all gasket-sealing surfaces on the main body are milled down. A leaky gasket can wreak havoc, causing a loss in boost pressure.
    Small Block Chevy Carburetor Build
    To make sure everything seals perfectly, all gasket-sealing surfaces on the main body are
  • Small Block Chevy Carburetor Build
    After the milling process is completed, O.J. chamfers or rolls all entry points to remove any possible burrs that may exist.
    Small Block Chevy Carburetor Build
    After the milling process is completed, O.J. chamfers or rolls all entry points to remove
  • Small Block Chevy Carburetor Build
    Once the larger vent tubes are added to the main body (for better ventilation of the fuel bowls), it is complete.
    Small Block Chevy Carburetor Build
    Once the larger vent tubes are added to the main body (for better ventilation of the fuel
  • Small Block Chevy Carburetor Build
    Both the primary and secondary metering blocks start out as blanks and are worked over like one of Rocky Balboa's punching bags.
    Small Block Chevy Carburetor Build
    Both the primary and secondary metering blocks start out as blanks and are worked over lik
  • Small Block Chevy Carburetor Build
    The metering blocks are worked to ensure that the fuel curve is linear and moving the correct amounts of fuel.
    Small Block Chevy Carburetor Build
    The metering blocks are worked to ensure that the fuel curve is linear and moving the corr
By Dan Ryder, Mike Harrington
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