Get your T34 rebuilt then give msd a call and they will be able to spec a chip to suit all of your mods.
Make sure that fuel pump and wiring are upgraded along with cooling fan wiring.
Msd will advise whats required.
Then you will be able to up the boost peak around 26psi holding 21psi
If your not confident doing it best to book it into msd.
Do it right do it once.
Paul