Lectron's H-Series carb slides work in conjunction with an increased bore taper to create more air flow (CFM) at low throttle positions. This generates higher velocity, more fuel lift, and a faster, torquier hit immediately off idle without being snappy or uncontrollable. The higher velocity also activates the power jet earlier to create a stronger, more tunable mid-range. New mold with 60% more aggressive venturi and redesigned bell. Improved slide design. Earlier power jet activation. Double the idle adjustment.. Lighter throttle pull. Shorter overall carb length. New black and yellow-themed sticker. Superior power delivery. Simple design, doesn't incorporate multiple jets. Special order only. Carb 38HV, Metering Rod Length 4-2, Cable, 10mm long