You can make 425 hp pretty easy
360 .030 over 9.5/7.9 static/dynamic
.528 solid purple cam installed 4 degrees advance
mildly ported 2.02 heads x or j etc...basic iron that do the old 245cfm by .500 -very basic average etc..
rpm intake
750 carb
cheap headers or good ones.... does'nt matter.
It doesnt take much. 360 is a great motor.