318 build need ideas first build

Here's a build thats in a friends '70 dart.. '76 era "smog 318" a pair of 360 1.88/1.60 heads shaved 90 thousand(I believe) aluminum intake edelbrock 625 carb. comp .477/.480 cam dougs headers..the 2 key things full manual valve body and 3.91 gears he's gone 13.75 with this set up..gears are the key thing..