Today, dollar for dollar, is the 318 faster than the 340 ???

So you put a nice set of pistons in a 40 year old bore? Getting real stupid now.
What part of a straight, untapered and still cross hatched good bore is stupid?
It had a small carbon ridge that cleaned up with a razorblade...

Why should an over bore help? ????

Remaining stupid I guess.
School me o'l wise one.