In case anyone cares, or wanted to know. 50cc Parma kit
I was working on it and decided to measure it out for reference.
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The front of the exhaust port is 32mm from the top of the cylinder 14.5mm x 27mm wide
The back of the intake port is 20mm from the back of the cylinder skirt 13mm x 25mm wide
Boost port in front of that is spaced 2mm forward of the intake port and is 18mm x 14m wide
All the side ports are 11mm x 13mm wide