Drunken Idea got me 40 free horsepower, no add ons!!!(miller mod)
#26
Like many urban myths there could be some facts in the story. While I serious doubt it had any effect the way he plumbed things, I have seen vacuum pumps create HP on piston engines. The only difference is they were sucking on the crankcase not blowing in the intake. A couple psi vacuum in there I'm told can give as much as 20 HP on those huge cid engines(500+ cu in). I may give it a try next time I put one on the dyno.
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