94 F-150 supercab 4X4

I recently purchased and installed a power module from hypertech.I havent installed the 160 degree thermostat yet. I don't really notice much difference in power ecxept for a little bit of pinging when hard on the throttle. I timed my truck from 0-60 before and after I installed the chip-no difference. I checked the timing and it was the same. I am going to take it out and clean the connections one more time.Is there anything else to check to make sure its working properly?
Does everone else notice a big difference with there chip?
Thanks for any comments.