Lol, what are some people ITT talking about? Not enough math? LOOOL. What else should he take for MA Econ?
OP I am also applying to grad school, so other people opinions might worth more -- my advice would be submit the high Quant GRE one if a significant number of applicants in the programs you are applying to, submit GRE scores. Otherwise submit none of them (especially if you are native speaker).
Btw the difference from 161 to 167 is nothing -- could be one night of bad sleep, or an argument with your girlfriend -- many people have similarly distant numbers on distinct attempts