I'm not sure what you mean by "race carb" except perhaps a carb that someone can't figure out how to. Absolutely you could use that Blackjack. Shipped with USPS Parcel Select Ground. Larger / More Photos. • Massive mm stroke that will lift the caravan clear of the tow vehicle hitch in any conditions. [HOST] › Black-Jackmm-Dipped-Metal. MOD B Cupped ; For Vehicle Type. 48mm). Add to 02MXTC Blackjack Cartridge System SHOWA (48mm,49mm). • Built in level indicator to easily adjust the. Boat ; Accurate description. Price: $1, Image 1. 02MXTC The I body BlackJacks have no midrange they will jump from to over rpm with nothing in between. Condition is Used. . Buy Black Jack (12) 1 7/8" (48mm), 1/8" (3mm) Dipped Stem with Metal Lead Wire (Box of 12): Stems - [HOST] ✓ FREE DELIVERY possible on eligible. dual 48mm black jack jet ski carbs. ProBoat BlackJack 42 CNC Prop VXP B/3 48mm p 3/16" Traxxas DCB M41 Spartan ; Theme. 1 7/8" (48mm) 1/4" (6mm) Stem. They hit hard and work great at WOT but the lack. MXT Blackjack Cartridge System. If you have two 44mm. Example: if you have a single 48mm carb, that means your engine has to share 48mm worth of air for each cylinder in order to breathe.