Cheapest way to built a 300-350hp small block

318, 030 over, "302" heads mild port job, stock valves, KB-844 dome pistons, comp XE-274 solid cam, air gap, 1-5/8 headers, 750 mech secondary got a 3200# dart to 13.40's@100 mph at 5800' track altitude. Probably 330 hp, most expensive thing was the pistons($400).