Hi everyone, I am new to the form and have read lots of threads with great advice, I hoping for some help myself.

I recently bought a 25OL 675 sci with a bravo1.. I've been reading about drives and them failing due to lack of maintenance or just time for rebuild. I bought the boat in UT and live in TX and I'm having to make some adjustments due to the altitude difference.

At first I was getting to much boost ( over 5lbs ) changed to a bigger pulley and it helped a bit, currently running a 26 lab bravo prop, think I need a 28, rev limit set at 5450 but can't get to wot without building up to much boost.

Using redline heavy shock ( will be changing to bravo shops drive oil ) and running vr1 50 motor oil ( also will be chaining to neo ). I j
Know there is more to do like oil cooler but I know I'm also not thinking of everything..

Any info will be great, I don't a whole lot about big motors !

Thanks

Also would like to know what I need to keep an eye on, what is the best oil for the whipple 2.3l How often should I change fluid on all, doing 30 hrs on motor and drive, every season on whipple. I know there is more but l don't have enough experience on these big motors....

Thanks again for any help or advice

ease on plane, chop throttle when comes out of water, will help....I run royal purple gear oil...over 700hp..but only a matter of time...

Thanks, yeah I baby it out of the whole tabs about half down or a bit less, then ease into it, I can't hit wot due to boost going over 4lbs at about 4800-5000 rpms, might need a bigger pulley ad prop, hitting 70+ on gps it's has a lot more throttle. I'm not looking to live at those speeds but want to visit once in a while!