Yes, Dakin did run IHRA - here's the final qualifying from Stanton, Mich. August 1, 1998:
STANTON, Mich. - Final order after 3 rounds of qualifying in Top Fuel at the 17th annual CARQUEST Northern Nationals :
Psn-Num-Driver, Home Town, Car Type------------------------------ET---Speed
1 3 Shirley Muldowney, Armada MI, Swindahl-KB 4.696 312.50
2 303 Pat Dakin, Dayton OH, McKinney-TFX 4.750 292.71
3 1 Paul Romine, Indianoplis IN, McKinney-TFX 4.794 288.21
4 461 Don Lampus, Garland TX, McKinney-KB 4.829 305.84
5 394 Luigi Novelli, Crete IL, McKinney-TFX 4.840 303.16
6 503 Tommy Johnson Jr, Ottumwa IA, McKinney-KB 4.858 288.52
7 316 Danny Dunn, Hudson NC, Hadman-KB 4.863 286.74
8 300 Jack Ostrander, Waterford MI, Swindahl-TFX 4.984 286.56
--------- Not Qualified ---------
9 772 Danielle DePorter, Scottsdale AZ, Hadman-KB 5.077 286.38
10 377 David Bieneman, Royal Oak MI, Uyehara-KB 5.142 264.08
11 277 Steve Smith, Princeton NC, McKinney-TFX 6.279 166.35
12 4 Jim Bailey, Mantua OH, Swindahl-KB 7.363 104.69
13 345 Bruce Litton, Indianapolis IN, Agan-TFX 7.575 105.88