Bought a stock replacement from treats. There are no arrows just the letters "IN" cast into the top. I'm assuming that those go towards the intake?
Side note, should t the piston have a window?
In towards intake.
And no, the stock piston is not windowed
Cool thanks. Would a window make me more blasty? Or would t do much? Seems like every reeded cylinder has one
I am a proponent of leaving MB5's stock, so I wouldn't.
But theoretically, it could improve the flow
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