I know there was a huge thread over a year ago on that topic, where both a gearbox designer and individual ratios where discussed. I’ll try to find it later.
Edit: I think it’s this one Transmission things - #20 by PMP1337
While I know from tests done a while ago that valve float tends to kick too early to make clones of some earlier engines, just be aware that the power figures for a lot of pre-1972 stuff are quite inaccurate as they were using SAE gross at the time.
IMHO MOHV should be axed, and OHV balanced in a way that makes most engines doable with a reasonable amount of quality. Hopefully they will work better with the engine rebalance.
I agree on that one considering what the stat represents.
Single barrel eco carbs where introduced not long after the first batch of demographics cars because multi-barrel carbs proved to be overpowered, as they were the optimum choice for pretty much anything including small I4s.
Their overrestrictiveness is a feature as they aren’t meant to be used for performance at all.
As for the balance with 4 barrel, that’s defintiively something that needs to be verified since running triple eco carbs does give results that are very similar to running a 4 barrel.