Bollocks, that is not very good, my standard Sapphire* (with Firestone rear tyres ) did the following:

*K&N Panel filter, Asley 4" big bore back box .

60ft 2.241
1/8th ET 9.620
1/8th speed 71.790mph
1/4 ET 14.835
1/4 speed 93.450mph

With stage 1 it did:
60ft 2.179
1/8th ET 8.743
1/8th speed 84.340mph
1/4 ET 13.406
1/4 speed 106.050mph

Stage III it did:
60ft 2.203
1/8th ET 8.474
1/8th speed 88.950mph
1/4 ET 12.892
1/4 speed 111.060mph

Stage III½ (T3/4 0.48 a/r) it did:
60ft 2.164
1/8th ET 8.361
1/8th speed 92.120mph
1/4 ET 12.640
1/4 speed 115.960

Stage IV (T3/4 0.63 a/r, light blues) it did:
60ft 2.186
1/8th ET 8.541s (lost time due to traction issues - could never better the stage III½ time)
1/8th speed 91.320mph
1/4 ET 12.763s
1/4 speed 118.440mph