I never had a boat with big blocks in it before.
Full throttle range is between 4600 and 5000 RPM. ( Depending upon props, load, gear ratio). So A) You should be able to make that engine speed at WOT.
If so, a good cruisinhg speed would be in the 3800 RPM area ( sea conditions taken into consideration, of course)
Nice boat, with big blocks I think you can cruise as much as what is in your wallet, big blocks are THIRSTY, you can go as fast or as slow as you want, you know what BOAT stands for don't you " Bring Out Another Thousand " enjoy :-)
She seems to like 3600RPM and I just wanted to be sure it was safe to run at that speed.
I get between 15 and 17 kts at 3600 depending on seas which is fine by me
3600 rpm is nothing for those big blocks, they are just barely breaking a sweat, you can tell if you are pushing them hard by the sound, run them at 3600, then slowly push the throttles forward and listen to the sound they are making,if they don't like it they will let you know,as for me I push mine forward slowly all the way then when I get on plane I back them down to about 3500/3800 rpm and about 30 mph,and it likes it there, I have a 305 bayliner with twin 5ltr MPIs B3s, weighs about 12,000 dry and about 13,500 fully loaded, fuel,water,gear,etc,anyways ENJOY your new boat, cheers :-)