Sorry not to confuse you, I wasn't saying just boring out will give you alot more power (compared to a good stock bore), but if you are running stock pistons and by the looks of it you are, you should do a compression test first then see. If you are running low, get rid of those old stock pistons and get some high compression aftermarket ones, you'll notice it's snappier. There's nothing wrong with starting with a fresh bore, but don't waste a bore job either, you only have so many.
Exactly