OT57 is a pure enthusiast on performance, and he is blessed with a tremendous amount of knowledge. He obviously has a fundamental common sense approach that has given him that knowledge, and he often is over extended on the needs of a BCB. But he is definitely catching on to what we find works. He is close on the engine height, and you may need to drop it a hair. He is also accurate on the PVS plugs adjusting the ventilation. If the Tempest works well, then run it and adjust it. The P3 is a totally different hull than other BCB models. It does not have a blazing hole shot, as we depend on that bow rise for rough water performance. Engine heights are related to steering torque on most all BCB hulls. As you gain steering torque, then you are loosing a bit of performance. Find the right engine height for you selected propeller, and then adjsut the hole shot for minimizing ventilation. Please dont take this wrong OT57, we have had more propellers for Toys than you can even imagine. From fancy made for us Mazcos and HOSS T series, to one off Merc forged Clever wheels, we have had some awesome toys! As engines developed, they became expensive paper weights. Eventually we sold most of them to the play boys out around Cali and Havasu.We used them on some of our go fast HP boats. Though we see no reason to even mention them as they will not ever work on the exhaust of a newer Optimax or direct injection style engines.We have had some of the fastest bass rigs in the USA and from winning when we used to race in the 80s, to setting records in the old APBA annual system, we have had our share of fun. Though in todays bass fishing environment, it just is not there anymore.Man do we sometimes miss those days, though times do change and so must we. If you play with ventilation and heights you will get it there. BCB