For the rebore Entry Fee,you are a goodly ways towards a Top End S/S spout. From there,you get to spec chamber dimensioning,along with RPM...while banking S/S all along.
Same goes a 280 build on the Twat-Six Donor and it of course benefits from VERY forgiving COAL latitude,which connects dots nicely.
Hint.................
Brad says: "Can't fault Rick for his pity letting you back on the fire... but pity it was and remains. Nothing more, nothing less. A sad little man in a sad little dream."