budget street motor 360 or 383 for 71 duster

LMAO!

Leadfoot made a good point. As well as a few other members. Lighter front ends help a good bit in the total package. The big choice is really up to you.
Decisions decisions decisions .....
Well, no matter which way you go, everyone here has excellent points.

Like I said early, i’m a small block guy really. There easier to come by and a slight cheaper not to mention you have one in there already.
Then again, 23 more cubes is 23 more cubes...