just wondering if anyone has ever used the 86-88 HKS FCON piggy back (designed for a turbo II) in an NA and experienced any power gains???

reason i asked is i was curious so i hooked it up to my NA, and the car still ran!! and drove allright, idle needed to be adjusted tho......i have been used to driving the turbo II so i couldnt really gauge if there was a hp difference or not.....

so has anyone else tried this??