I am hoping to call on experience here. I am turbocharging a 300 in pick up. I want a good daily driver. It's a standard shift and will have EFI manifold and Mega squirt. The cam is stock and the compression ratio is 8.8 to 1. Max RPM would be 4800. Through what I have read here I had decided on 10 lbs boost or less to avoid head gasket issues and I want to make it dependable. I have JE forged pistons. I called the local turbo shop to help me size the turbo. I have an Air Research housing with interigal waste gate. I said I would like to limit the boost to 9 lbs. The question the turbo tech asked was, "ok but How much horsepower do I want to make. I need to know to size the compressor?" I have always thought you went for boost and HP is what it is or you went for HP and calulated the boost it took to get there. All help,is appreciated including sizing the turbine and compressor. I am in a stage where I can start over on the turbo selection