Crossover Tube and Valve Spring Pressure Questions

what a series of unfortunate events!

understandable that you're looking for power up top. the heads would support that, and if you've got the compression i don't see it as a problem.

i think there's better cam choices, and intake. but if you're working within those parameters then it is what it is.
yeah; from what's been suggested here and with the lifters Rusty suggested I think I'll stick with my cam and opt out of the crossover tube.

Side note: I got my crank installed after adjusting main clearances. and it takes less than one pound torque to rotate if over. :D