what size cam???

The way I read it, you are keeping the stock lower end together, right? For a budget, the Summit Racing cam and lifter pkg works well (p/n SUM-K6900) and will pull strong off idle even with a lack of compression. Invest in a new timing set (chain and gears) too. I'd also run the MP thin head gaskets, and install new valve springs, lose the exh valve rotators and replace with regular retainers (used off a 318 will do fine), replace the valve seals. Not sure what you meant by "rods"..pushrods or connecting rods..you shouldnt need either. If the bearings look good, reinstall them. Dont put new bearings on the old crank without polishing/turning. Run some 1 5/8 headers, and even with a stock convertor and high gears, it will be a riot.