Greetings

Hey guys/girls,
New here thought I'd say hi. My name's Zach.
Just started a duster project so you'll have to excuse the ignorance and stupid questions.
Been a Mopar guy since I was 16. My first car was a 79 dodge half ton. I built a 440 for it when I was in highschool but never got to install it.
Bought a duster a week ago. What I'm trying to figure out is if I should do a big block swap or put the 408 in I bought last year?.
I'm excited to get started. Look forward to talking with you fellas/ladies.
Zach