The issue I see is the crankcase is a vacuum, not pressure. The pressure is in the combustion chamber and muffler. IDK, it is what it is.
Tony here is a pic on my canopy. Decals I need: 2 www.rchelp.com in I'm thinking white, what do you think? 5 1/2"x1/2". Then: 2 Sam Zirilli Jr, same size. Unless you think a different color. With all the colors in my canopy, I think white will stand out the most. The rest of the lettering is in chrome. Here's the pic!
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Yep I reacon White .... tuck it down under the nose in the blue! ..... RC-Help! Leading the Way!
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Man that looks like a mean machine! Very tidy indeed!