The Corvette wasn't made with a 327ci V8 in 1970. A 1970 Corvette with the 350ci ZQ4 V8 puts out 300hp and with the 350ci LT1 V8 puts out 370hp (these are gross horse power figures).
basically it had a heavier duty suspension and bigger brakes and the 440 engine with dual exhaust, it was an upscale satellite with better interior and more ginger bread on the outside of the car.