Even the Packard purist would be glad to see a souped up I8 over a refitted SBC.

Turbo charging would be much easier than fitting a supercharger.

327 cubic inches and low RPM boost.

Check out this turbo selector chart from Turbonetics
http://www.turboneticsinc.com/sites/default/files/Turbo%20Matrix%20.pdf

It does not have your engine size and HP on the chart. So next is to make a educated guess on what to pick.
I have run a 62-1 turbo with a stage 5 wheel and small AR exh housing on a 300 cube 292. It would boost way too fast and produce too much boost at high rpm. In your application this particular turbo might work great. Your rpms will be at a much lower limit, such as 4000 max or lower.
You need to find out the rpms your engine turns at cruise speed.

Last edited by tlowe #1716; 09/29/13 10:27 AM.
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