Turbo/supercharger

I'd look strongly at E85 at that compression level. Methanol is fine for racing only setup.

How have you established 10.5:1 compression? What's measured cranking compression? What heads, etc?

A procharger with a hat on something like an FITech throttle body running E85 should be quite good and fit under the hood on that Sweptline. S/F...Ken M