i know this is an all motor thread but ive personally seen cp come apart in 3 different motors and all 3 different as far as boost,nitrous and one all motor. i myself have had good luck with wiseco and je. the je's have more piston slap on start up. i have used a company called probe industries for up to 400hp with no problems but never dynoed no more than 483hp cause traction is shit not much after 300+ any way so i leave settings on 13psi at 312hp and hardly ever needed the 18 psi 480ish so id say my high boost was around 15.5 psi at around 400ish! build is 4 years old and about 21,xxx miles my block is stock sleeved and filled with devcon liquid aluminum from top of water pump square hole up to about 1/4 away from top then drilled coolant holes around the bores through it and small steam holes in between close to the center points if the connecting cylinders. has been a great motor and is my 3rd build using same method and brand parts as they had never failed me on any build yet. even long after i have sold em they are still running and im still proud of em! but the pouring has seemed to really beef up the block and becomes part of the block.