225 Max Performance Recipe?

You pretty much can take any V8 add cam 4bbl and headers and beat the hp of a built NA slant 6. Head is the /6 weakest area for performance.

Gearing is the next problem. Smaller displacement is gonna need a lot deeper gears to be on the same footing as V8.

If you want any real power some kind of power adder is needed.

I always wanted to build a /6 but it really pointless go 360 or 408 or even 440.