What flame arrestors can/should I use?

[whitca]

I am having Jetworks port a 61x engine that's going in a 750sxi and I don't know what flame arrestors to use. I have an aftermarket dual carb intake with 44 sbn's on it. The engine will be ported along with a b-pipe and enhancer for now. There's a stock arrestor off a 62t in my garage but I don't know if it will work and my carbs haven't showed up yet to try and fit it. Is this an option or do I have to get proks?

 

[craven]

I have been working on a plan to solve this very problem. I will be testing next week.
You can use stock single carb yamaha tops with these or I am working on an aftermarket top that should look cool. These mount the same as the Prox but keep water out like an oem box actually better, I will explain more after testing.