Upgrading heads on my Trans Am WS6

Installing a set of ported 243 heads flow rated to my BTR stage 3 cam. 2002 Trans AM WS6 LS1 T56 190k mile stock bottom end Brian Tooley Racing Stage 3 V2 camshaft BTR chromoly pushrods BTR .660 double valve springs BTR titanium retainers BTR trunion kit upgrade Melling Oil Pump and Timing chain Morel 7717 LS7 lifters BTR LS9 7 layer gasket ARP head studs Speed Engineering 1 7/8" stainless long tube headers Speed Engineering true dual exhaust Eibach 1.25" lowering springs Speed Engineering tubular K member Speed Engineering sub frame connectors BMR rear lower control arms Speed Engineering adjustable pan hard bar and relocation Speed Engineering adjustable torque arm