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Product Description
ARC's Pro Series CNC .615 Blueprinted carburetor is set up specifically for the the AKRA/NKA/WKA stock class. The .615 Pro Series carb has been precision bored with the same CNC technology that we use on our billet connecting rods and fully Blueprinted to meet AKRA/NKA/WKA Box Stock carburetor rules. We have spent many hours on the dyno and on the bench working all the trick areas that need attention to give you one of the best and most consistent stock class carbs on the market.
We jet these carbs to your specific build application. Please select the header combo you have, which racing cam you are using, the type of racing you are doing along with if and what color restrictor plate you are using from the drop-down boxes so we can customize your carb to match your needs. The carb will come with Timing and Coil Gap instructions. Carb is set up for Pump Gasoline fuel only.
***Will Not work with stock air box applications***
***Not recommended for stock cam, stock flywheel or stock muffler applications***
***Not recommended for gravity flow fuel delivery***
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Product Reviews
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.615 carb
Bolt on simple upgrade
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Very convenient
I love this carb. It was worth the money. Very easy to install, and I love the fact that it came ready to go. I didn't have to adjust anything.
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Much better than a stock carb!
Compared to a stock carb with the same jetting on a “Box Stock” Predator 212, this carb outperformed it in the full power band. It pulled better on the bottom end and was good for about 400-500 rpm at the end of the straight on a 3/4 mile sprint track. The only reason I gave it 4 stars was because they didn’t seat the rubber o-ring on the float bowl properly so it leaked the first time I put it on. Other than that small issue, I have no complaints.
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Superb work ARC.
This carburetor is the one to compare all other box stock carbs to. Slick and perfect. Great throttle response and jetting specific to your application.
