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Old 05-28-2010, 11:44 AM
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Location: Birmingham, AL
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The j21 carb from the vspec will fit the extech. The ninja MR 21 is not the same as the vspec the MR is Mario Rossi and the engine is grp based. The ninja that is the same as the vspec is the jx series.

I have personally used an old vspec carb and an old P*5 carb in an extech 24.

Originally Posted by paposwing14 View Post
I started Nitro this season and run Extech Fully Modded in my truggy. I have had my car stick couple of times as to where I couldn't get over jumps. I pulled my idle screw and it had a bad bur on it and I am in process of buffing it out with mothers and dremel pad as specified in trinity thread. I would like to try a VZB carb but want to ensure this is right one. My buddy told me their are 2 versions of VZB. Here is part (OS 21 VZB Engine Parts 21J Carburetor V-Spec). Also I have a Ninja BO1 MR21 and wanted to know if that carb will work since I was told this engine and VZB are the same. I am happy with power but I agree these carbs are week.
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