Street Racing vs Drag Racing

[Los]

Hey guys, I'm new here and just learning the ropes and stuff. One question though. See, I've been street racing for four-five years while only actively drag racing these past couple of months. The thing is, while I'm running only low 14s, I'm hanging with or beating high to mid 13 seconds cars on the street. Now are the physics between street and strip different or is it that sometimes I get spurts of racing brilliance or they're just sucking *** ?

Thanks.