I just did some research and found that the flathead Ford started the 50's as the engine to have. Seen a picture of one with a 3-71 blower and what looked like two strombergs on top.
The 331 Caddy engine doubled the horsepower of the flathead and I seen pictures of 4 and 6 strombergs on them, even blowers.
Didn't see too many fuel injection pictures as streetability must have been bad.
The Olds Rocket was seen around the time of the Caddy.
Streetability is something affordable and driveable. If your car dies at every other stop light, I don't call that streetable.
Affordable would be just using mostly interchangable parts, like Merc cranks. You still can buy the cheaper stuff new.
I'm looking to build a model that would be era correct before the small block Chevy came out. Any tips on what other things to use or not to use.