My advice is stick with a single setup. It will be easier to fab up. Master power turbos from Brazil are quality as a garret but at an affordable cost. With mild boost the bottom end will be fine. I'm no pushrod guy but your pistons can handle low boost fine. The weak spot is of course the block which twists and cracks at high power levels. Build some log headers or try to flip shorty's with custom flanges welded on. Then dump a 3" single exhaust to the back. Then theres oiling setup, fuel system, tuning, plugs, inter cooling, intake plumbing, blow thru...pull thru..or stand alone efi, carbed? So many different setup options. All i say is research like crazy and take your time don't hurry the build.
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