super charged big block

since bolting a 4-71 onto my 351 windsor this weekend and getting hooked on the amount of power we got out of it i am now hooked on doing the same to my big block chevy truck

i want to keep it street worthy and reliable (not wanting to rebuild it every couple of months)

what blower should i use and which block?

i want either a 6-71 or 8-71 blower but what company makes a good blower? BDS? B&M? Weiand? any others out there?

i have 2 blocks to choose from to an old 1977 from a suburban or the one in the truck from an old 1984 motorhome which one will be stronger?

this isn't a lowered hot rod though its running 44" tires under 1 ton axles so i don't know if that changes anything