1.) For the love of God why?
2.) it would be a major PIA; you'd have to get new headers, plug up a bunch of spots in the oiling system, and probably fuss around with the CIS a bit.
If you don't want to go fast, just don't give it too much gas... 
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'86 930: 3.4 Andial build, Web GT2 Evo cams, Carrillo rods, ported/polished heads, MSD 6530, B&B headers/exh + intercooler, K27HF, 1 bar spring, Tial wastegate, Andial FE, Lindsey Fuchs. Back in black!!!
Past:997S cab; '88 930; '86 951; C5 Vette; 4th Gen Z28; 3rd Gen Trans Am GTA; '71 Z28
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