318 with 360 heads and compcam build help

Hydraulic Camshaft Specifications
Send Your stock 318 cam have reground to profile 1333 on as narrow of an LSA as the stock core will allow and send your lifters along to have them refaced. Use Comp 901-16 springs. What condition is your stock '67 318 short block in? Here's an example of a dome piston. Stock bore sizes are also available with 1/16 inch ring stacks for a little more $$, but your bores need to be in very good shape to get by with a stock bore hypereutectic piston.
PLYMOUTH KB KB399KTM.020 KB Performance Hyper Piston and Ring Kits | Summit Racing