Which Custom chip?

[breakemlose]

My car has heads/cam/intake/ 10:1 compression only dyno'ing 275rwhp & 285 rwtq. Crappy! 1992 mustang with new engine.

Car's powerband is rough, idles like crap and if you fluctuate your driving pattersn it spazes out more and surges at idle or 1,500rpm's or less.

I am thinking it's because the car's stock computer does not know how to run the car anymore. Which custom chip would be best.

 

[wildstang347]

contact hypertech. they have several versions 2 choose from includeing a dual stage chip with 2 settings, 1 for everyday driveing without nitrous and 2nd stage activated via button for nitrous settings.
can also double as high RPM retard function to free up some power activated in top gear. most chips run around 299$