Running 9:1 will be fine, just dont run 87 octane & boost it high.
That GSP GT35 T4 will work fine for you. Specs out OK.
It should spool-up faily good for a daily driver. Running a .84 A/R or bigger will give you turbo lag & will cause it to get into boost later in the RPM range.
I would install an intercooler. The price for a kit is not much & no reason not to install one.
You are running higher compression, not too high though, & you want to keep your intake air temps down as not to detonate.
Running 8:1 compression is cause for a doggy engine & mileage will suffer also.
With your truck there will be plenty of room for an intercooler.
Good luck.
MBHD
