Paint help quick

I am repainting my engine compartment with the same paint car was painted with. Was painted once but was nicked up so wanted it to good better. New at this, talked to the guy at a reputable paint store for quite a while so that's where I got the times between paint, etc. Sanded it down good, went over it twice with a degreaser, then twice with a wax and grease remover. 2 coats of epoxy primer, waited 20 minutes between coats. Let dry for 1!/2 hour and put on the base coat, Shopline paint. waited 15 minutes and put on the second coat. As I was putting on the second coat I see a couple areas that are bubbling up. Tech sheet says to clear withing 24 hours. Can I let the paint dry for a couple hours, lightly sand it down, clean it really good and reshoot the base coat? Like I said, I'm new at paint so is there anything I can do other than start over?