Punisher, my 351W is stock except for headers. BUT- it's has about 150K +++ on it, it's not fresh, but still solid.
I am running a Q jet carb, and have a Holley Street Dominator spread bore intake manifold. (I just took off the fuel injection and old manifold, but that's another story)
I start in 2nd gear, if you consider 1st gear granny (it is, first gear is not synchronized).
FYI a "rollin stop" is the same to me as a full stop, I would use the same gear.
I have started in 3rd gear, but its just slightly too high a gear, not good for the clutch but not especially hurtful either.
I don't rev it much, doubt it gets over 3000 RPM much.
I'm at 4200 ft altitude, that does take away much power as compared to sea level.
Could you be more specific what your actually concerned about? I'm not quite sure what your actually wanting to know.
I'm the type of driver who likes torque more than HP.
J.E.