It's not liquid fuel in a tiny stream form. The fuel vaporizes and is dispersed more evenly. That's why the exhaust manifold is mated to the intake and why there's a heat check valve.
As mentioned previously, the 3x1 intake provides the best mixture for an inline. It's just a pain in the arse compared to a single 4.
"You talk and try and learn from your mistakes and try some more. It's all a BIG trial and error."
While this is true, this forum is where one benefits greatly from learning of others mistakes which help to avoid pitfalls (and money pits) and error and all around waste of time B.S.
And time is money (so my wife constantly reminds me). It's good to experiment, yes. But, you also must remember, the great majority of things on these old motors and trucks have already been tried by someone else. Learn from them. Carb adapters, exhaust cutouts and all kinds of crazy hoo-hah gadgets and hoo-hah speed equipment for stovebolts and other inline motors has been around
since the 1930's. I'm not trying to discourage you or tell you not to think outside the box. Just that frugality and spend thrift is often not the wisest choice nor does it actually equate to frugal in the long run. As a cheap-arse, I speak from experience. I often do things the hard way to save a few bucks. Take a look at the headlights on my '65. I wasted countless hours modifying some Ford station wagon buckets to work with the 58-59 Chevy truck bezels because they were $7 for the pair (including working headlights). Not time efficient. Time is money, so says my wife. She's smarter than I.
-David