400 low buck dont give a

Something like this...http://www.summitracing.com/parts/CCA-21-222-4/..with a dual plane intake and maybe some 1.6 rockers would probably work as long as you brought the gear back in the 3.91 range. It's hard to come up with the right senario for a 8.0to1 at best engine, a short stroke and 4.56 gears for a street cruiser. imo.