Use the mph based calculators. The ET based ones will be way off especially with an AWD car.
Try this site:
http://www.smokemup.com/utilities/calc/hp_mph.cfm
According to this calc Mad Max makes 208 wheel hp. On the dyno it made 203 hp. Pretty close.
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Larry
2000 Nissan Maxima SE 5 speed Mad Max
14.38 @ 96.62 (2.13) - 203 hp/191 ft lb on Spec Rs Dynojet
1985 Dodge Omni GLH Turbo - 4SFED
Breaking engine in.....
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Larry
2002 MB C320 Sport Wagon 15.4@91
2002 Dodge Neon SE
1991 Dodge Spirit R/T-12.3@117 (at 368 whp) Now 500 whp / 514 ft lb on pump gas