<VV> paint problems

[Kirk Eck]

I am painting the shrouds on my 66, I sandblasted the
pieces, cleaned them with soap, rinsed them and dried
them, prepped them with Eastwood paint prep and
painted them with Duplicolor high temp paint (black). 
Here's the problem, the paint is cloudy in some areas
and in others it is, for lack of a better description,
sandy.  In some areas I can brush the paint off, it
comes off in small sand like bits!  I painted them on
an evening when the temperature was around 75 degrees
and humidity was low.  Any ideas on what I  did wrong,
FYI I thought maybe it was the paint so I bought a new
can and sprayed another part and it did the same
thing!

I've got to get these painted ASAP or I'm going to
miss the  Great Plains Corvair Round-Up here in
Wichita, KS  at the end of this month!

YES I know I should of powder coated them, but darn it
I'm so broke I can't pay attention!

Kirk Eck