painters step in side, clear coat question

Sprayed a TR8 this weekend base coat clear coat.  Base went down fantastic.  Clear went down nice as well, but had a slight pebble finish to it.  More than just orange peel.  Seemed like it was going down light.  Used a 1.4mm nozzle.  It was going on nice, with no runs, so I just went with it.  Hit it with 4 coats and used up two quarts of clear plus hardener, so thats like 80 ounces of clear on a TR8 convertible.  I'm in the process of wet sanding the clear now starting with 1000 grit.  Its taking longer than it should.  So, should I have used the 1.8 nozzle?  Should I have just messed with the gun and incresaed the amount of material going thru the nozzle?  Every time I have sprayed clear before, I have had small runs.  None this time, so that leads me to believe there wasn't enough material going on.  One other thing is it dried fast.  Real fast.

Were temps similar? What sort of environmment were you spraying in?

I'd think nozzle was perfectly fine.

Did you reduce or use a retarder?

Fox

75* 50% humidity.  First time spraying with a new, better gun.  Just clear coat and the activator 4 to 1 as specified by manufacturer.  It was Nason paint and clear.