Help me shave off 3 tenths in the 1/4

i would love to shave some weight, not only for better et's but better everything. I am considering a fibreglass shaker vs the all steal I'm running but other than that I'm not willing to part with anything to drop weight ( other than the wheels )
My 60ft times are 1.70. Don't really want to go higher stall. This one works very well down the highway in overdrive.