360 engine build opinions - first engine build
Economical builds would reuse as much stuff as possible.
Bore the engine .030 and use honing plates. KB 107 pistons will get the comp up. Shoot for around 9.5:1. Stay under .230 duration for driveability's sake. Pocket port and gasket match the heads. Upgrade the intake valves to 2.02. Backcut the exhaust valves.
Shop around for parts. Look at places like Summit, PAW.