I like it when a guy is taller than me when I'm wearing my highest heels, though I'm not a tall girl, my heels can be quite high and if the guy is taller than that, great! If he's a bit muscular as well, even better!
Women almost always prefer tall men; look at any online ad site (Match.com, Zoosk, etc.) and you can see that. Now, if you were 7-4 then some might find that too much, but if you aren't totally socially inept, a total dick, or resembling Frankenstein, you shouldn't have a problem.
(For the anal-retentive out there, yes, I know Frankenstein was actually the scientist and not the monster. But you know what I mean)