Turboman makes a LOT of sence, unlike most.

High comp and big bhp per litre only works with race fuel and/or incredible charge cooling.

If any of your believe (certainly used to by looks of this thread) that the high comp american or jap cars run big boost on pump fuel your massivley mistaken.
And most are horrendous to drive as to make half decent power with such high comp and run pump fuel they need massivley OTT exhaust housings and cams compared to a big boost low comp engine.