So after it had an issue you leaked the engine and it was 3% or less? BTW, I don’t think there is anyone here who advocates for higher than orthodox compression ratios on pump gas than me (its probably not even close) and there is no way in hell I’d build a boosted pump gas engine at 10:1 ever. Especially with a blow through application.
Maybe, and by MAYBE I mean if you were using a very capable EFI set up and maybe and I mean MAYBE if I thought you had the tuning ability to deal with a compression ratio that high (no offense but I’ve seen a lot of “tuners” who are full of crapola...not saying you are I’m just point out WWYRD) and IF I know for a fact you had your cooling system up to snuff and you had a big water pump and a great thermostat and all that was scienced out then maybe I would consider that compression ratio.
You are a point and a half higher than I would have used. Under boost pump gas does weird stuff. If you can’t control the timing curve and the fuel map, plus keep the coolant at ALL TIMES no more than 160 you are going to be in for a tuning nightmare.