let's be candid - the engine designs are not the same and not really setup for same purposes
In my 33% edge and my 42% Extra ,the glo fueled 62 or the big Herbie or any of the racer setups woud be completely out of their elements
My ZDZJ engines easily hand flip and start at 1000rpm are absolutely linear in output and smooth as glass on the optomized ignition setup.
I tried a Chev 6 carb, log manifold setup once in my Austin Healey. terrific Hp but not drivable - changing to different manifolds carbs , progressive linkage -ignition curve etc - it ran extremely well on the street - not as fast flat out but fit the use much better .
Oh yeh --for those whoever really built stuff from the ground up and raced it -- go rent or buy a copy of he "World's fastest Indian" starring Anthony Hopkins
It is about a guy who built up an old Indian twin bike (under 1000cc ) and proceeded to kick arse wif it
You kids may even like it --