I Need help 410 Stroker timing Carb Education

Also, you need more carb. The 800 sounds about right but I don’t like spreadbore carbs.
Agreed.
Except for 318s and stockish 360s on account of the legendary TQ moan. Ima thinking they shouldda made those to be 3bbls; inline front to back; A monster in the middle and smaller, much smaller outboards,lol. Like a 6-pac but all in one body, and more compact, and still the AirValve, one fuel bowl. BadaBOOM!