[Don Kennedy]

The AHFS is used to review and evaluate runs in Stock and Super Stock for possible horsepower adjustments. The review is conducted twice per racing season. The two reviews are compiled individually so the data is not cumulative. Runs included in the AHFS database are limited to final qualifying runs (Q data) and all elimination runs (E data) at all NHRA National, Sports National and LODRS events. (At events where class eliminations are run, all class elimination runs are included in the AHFS database. Only the first round of class is part of qualifying and therefore is part of the "Q" database.)The "Q" data and "E" data files are the official data gathered by the NHRA timing system and processed through the NHRA Information Technology department. NHRA "Q" data and "E" data are the only data files used for the AHFS. No runs made during National Opens, test and tune, time trials,1/8 mile events or races within a race (i.e. Jegs Allstar eliminations, Stock / Super Stock Combos or other races that are not part of a season long points championship) are included in any review.

The first review period includes data from National and LODRS events 1 through 12 and the second period includes runs from events 13 through 24. The following procedure is used in reviewing run data:

Final qualifying, class eliminations, and elimination runs of 1.00 seconds or more, under the index, at NHRA National, Sports Nationals, and LODRS events will trigger an automatic review. (The combination must make at least two runs of 1.00 or quicker before a review is triggered to prevent a "one time fast run" from triggering the system.) In reviewing runs of 1.00 or more under the index, the database of runs for the engine combination being reviewed are put through three screenings as listed below. The screenings will look for an overall engine family average or class/engine average faster than 0.850-second under. Runs of .350 and slower are not included in calculating the engine or class/engine averages: