need advice: 440 in a Duster

Thanks for all the great info. Originally I was going to build a 360 and put it in. the kid was going to sell it to me for $200. Well then he backed out because his dad wanted it. Then my buddy saw a 440 for sale! It is the complete motor from pan to carb and a 727 tranny all runs great for $900.

this will be mostly for the track but will be driven to cruise-ins and to and from the track not a d/d by any means.

I was already planning on aftermarket fiberglass hood, upgraded headers, suspension, brakes, intake/carb, maybe heads eventually.

The part I was most curious about was modification to the chasis or firewall, drive saft, and if I need to upgrade to an 8 3/4 rear end.

Basically I want a Rowdy *** torque monster that does good in the 1/4 mile.