So im looking for some more info, im sticking with building my 396/402 bbc engine. it will be bored out to 4.154 or 4.155, i plan on using Federal Mogul rebuild kit CSMHP716-611 from summit racing, it has Hypereutectic pistons with a -21.00cc dome and a 1.760 comp. distence, COMP Cams Xtreme Energy Retrofit Cam and Lifter Kit K11-413-8 which is 264/270 .510/.510, COMP Cams Magnum Rocker Arm and High Energy Pushrod Kit RPR205. I will be running stock 215 heads they have 98.4cc combustion chamber. So my question now is should i up size the valve size on the heads or leave them stock? Should i use Main and Head studs or just plan bolts? ARP of course. MSD Ignition system with a 6AL box. What size carb should i run? What intake is best? Will be running a 700r4 trans this will be a 4X4 truck running 33 inch tires and more and likely 3.73 gears. Im only looking for around 350-450 HP. Instead of the 500-500 i was before.

Thanks