HauserTransAm

iTrader: (2)

I just recently put a new cam, oil pump, valve springs, retainer, pushrods and rockers and all the little stuff that goes with that and since then I have the codes below showing up and also when I am driving normal and then punch it it has like a 3-4 second delay before it will finally take off? What could be my problems? Any from it not being tuned yet or maybe all of it? thanks.

po121-tps/peddle position sensor A ckt range/perf
po135-o2 sensor heater curcuit malfunction (bank 1 sensor 1)
po155-02 sensor heater curcuit malfunction (band 2 sensor 1)
po300-random multiple cylinder missfire detected
po135-o2 sensor heater curcuit malfunction (bank 1 sensor 1)