For a quality IIPA, reduce dryhop time, shoot for a lower OG, a lower FG, use more hops, and use less cara- malts.
Example:
2 Row base
0-5% Crystal 60L
0-5% Carapils
Mash at 149-151
1.5oz Magnum @60
2-3oz Galaxy @10
3-4oz Galaxy @ Flameout
Dry hop 4-5oz Galaxy in Secondary for 5 days