Can't say much myself,I've only got 45XXX miles on my blown stang,but I've seen a few cars with 150,ooo+ blower miles and other mods running high 11's low 12's on the tired lil 302
Ford did very well designing these motors.
and yes you can use a blower on a daily driven car,just don't be speeding all the time
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Paxton Blown 87GT