performance chips

[lowc1500]

has anyone had good performance gains with a thermomaster hypertech chip on a 350TBI? I heard they outperform the Jet stage 2 chips according to other forums.

Also I heard the Fastchips by Ed Wright are even better providing
partial throttle & WOT gains , when Hypertech improves WOT performance. Anyone, try a Fastchip???

Thanks,
Oscar
1990 chevy ext cab
:)

[SIT N' LOW]

I've sold a couple of these thermomasters and they have worked well. the people that have them like them and have had no problems. they've also done exhaust and k&n filter.