340 input (direction)

And while I am a big fan of hi-compression and tight Q;
It is not the final word.
In fact from worst case factory engineered 8/1 cr to best case on pump gas cr, the difference is said to be in the range of 4 or 5 %. On a 300hp engine that might be about one cam size in terms of gross power.
But what they don't tell you is the effect Hi CR has on low speed operation.
So if your current combo, is a happy combo, then just drive it.