Vortex velocity stack

53 mph according to the local " You are doing ** mph" junior high school radar sign taken at 3:30 am . I'm actually surprised how grippy and responsive it is.

New yd 100 crank stock ld100 cylinder HP head, mz65 pipe with a super short manifold with a pz 20 that's been drilled out for nibbi 21 jet diameters with the velocity stack, 32 tooth sprocket. And a whole lot of oh yeah!

I'll post pictures in a little bit it's my son's birthday and we're going to go watch fireworks so I'll get back to this in a minute.
 

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