I guess, everyone should run on oil filled shocks, skinny torsion bars and bias ply tires too. who needs rear disc brakes and efi for that matter. if these things didn't have modern replacements that were "better" then they wouldn't be needed by anyone. the sdc kit uses all the modern accessories, but it takes time to develop and test and market these products. maybe no one should make anything for our cars that was modern since they were great as is back from the 60s and 70s. I guess to each his own. probably not doing a new gen 3 hemi swap either huh? I personally hated trying to find matching belts for the alternator and ac compressor on my car. I could never get them tight enough and then the squeal from one always sounded really tough when revving my engine, or having a belt a fly off at the drag strip while shifting at 6800 rpm. that was trying to turn the car to get onto pit road with a missing power steering belt.
march makes a nice kit, but i'm not a fan of the chevy accessories, cvf racing makes a decent kit and their two belt version is dirt cheap.