Strengthening a 1964 C-10 Frame for drag racing / street use

[Arekusu]

Hi All.

Well I'm getting near the end of my project and installed a big block that should make near 600ft. lbs of torque (est.)

My question goes out to a lot of the Fabricators and real life Engineers that dabble in suspension creation or modifying. What is the best way for me to keep my stock frame but re-enforce it so it doesn't get totally twisted? I have a manual transmission and I'd still like to be able to remove it easily. I have the cab off now so I figure now is the time.

Does boxing the frame do much to help?

Oh, also, this truck will still see street time, not just racing.

Alex