All things considered Inwould not push the envelope on compression since it is not worth the headache on fuel octane requirements. If 1pt. of ratio is worth 3%, no matter what HP level you build it to the whole package is worthless if you can not properly feed it the octane it needs.

Your better off light by 1pt. of compression so you can run anytime anywhere without issues.
Your better off focusing on creating the best possible and least restrictive air flow paths in and out of the cylinder.

Induction wise, dependent on parts used and modified, there is an easy 50hp difference between good and awesome intake tracks. There’s even more with a well thought out exhaust system.

And it adds up to a hell of a lot more than making use of max compression.