Putting 340 intake on 273 heads??

I have '74 360 heads with 2.02 intake valves and a holley strip dominator intake on my 340 and run the 110 racing purple gas because of compression ..... piston is at the top of the block ( 0 deck) with a 4 speed and 3:91 sure grip rear the aspalt crayons are getting thin ! DON'T DO THE 273 HEADS ! Only a suggestion !