Use a vacuum reservoir with a one way check valve and you can get away with a pretty lumpy cam. I like to use a small refrigerant gas cylinder as a vacuum tank. As in the can used to recharge A/C systems that I can get at Walmart/AutoZone?
1949 3600
Don't sweat the petty things, and don't pet the sweaty things.
Never play leap-frog with a Unicorn.
2 Wrongs don't make a right, but 3 lefts do.
Of all the Henges, Stone is my favorite.
If at first you don't succeed, skydiving is not for you.
Here's a word I just made up.....Plagiarism.
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