18-05-2022, 10:36 PM
I have a Speedex tappet chest cover that hasn't been drilled for venting, much like Tony's Supaloy one (I'm assuming Tony doesn’t have holes as there are none visible). I'm considering using short studs and venting through the centre of cross-drilled thumb screws, just to avoid drilling holes in the cover now. I think it would be easier to add a pipe to a catch tank that way too,given the ribbed surface.