you can do that with the same bottom end, just need more cam than the 268* comp....im just being conservative...
318 9.7-10.1 comp
mildly ported 360 heads flow in the '245-250 cfm range'
headers 'cheap or tti' http://www.compcams.com/Company/CC/cam-specs/Details.aspx?csid=670&sb=0
that will sound good and pull hard into the r's which is what that short stroke & long rods like.
rpm intake gasket matched w/heads
650-700 holley carb
2800 stall
3.55-3.91 gears