Hi Goomba, All
Quote:
...........mechanics guys I know refer to it as a 5 Liter not a 307.........
Since I do all of my own work (except some engine machining), I don't talk much to mechanics guys.
I grew up with the English system and American muscle, and metric measurement is still not used in making Olds power.
Quote:
...............How much would a supercharger or turbocharger decrease mileage by anyway for an engine that size?..........
It takes more fuel to make more power.
There will be no measurable change unless you actually use the added power, in which case you will use more fuel.
In your case, more cubic inches is a better choice than supercharging.
Regards, Norm
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