13 sec. 360 for $3,000?
According to a calculator youd only need 323hp to run a 13.00 and the tires, suspension and chassis to make it do said 13.00.
That sounds awfully simple out of a 360.
You could probably copy the old crate engines goodies.
I assume you could do up your heads to gain some airflow, maybe for fun since you want stock bore and compression, throw in a set of gas ported rings. Too bad you want to keep it 3600 pounds that kinda is heavy.