318 engine combination

I'm looking at a summit racing 600 cfm vacuum secondary carb (around a 67 main jet and 73 secondary) 1" spacer, long tube hookers, pypes violator exhaust, factory tips, hei distributor, and I will be tuning with a vacuum gauge and Afr gauge
I was contemplating with those #302 heads to do some port and bowl work to them and get 1.88/1.60 valves put in