Well for starters I've always LOVED goblins and have always tried to play them. However right now I find them to be a little lack luster in the current meta.
That being said, your deck list doesn't look bad.
Fervor 
is a "must have" with krenko mob boss IMO. I also think you should remove
Survey the Wreckage 
the card is has such a high cost and gives such little return for your deck.
If your wanting stay mono red then perhaps
Mogg Flunkies 
could help add creatures, though I'm not very fond of the card. Also I don't know your budget but anytime your playing a tribal deck,
Cavern of Souls 
is an amazing addition.
My standerd goblin deck is actually red with a splash of blue. Adding in
Goblin Electomancer 
and
Teleportal 
mainly. The red/blue version I run is fairly consistent but still runs just over 50/50 at my local FNM.
Hope that helps some, also use [*deck] [*/deck] without the * to link your deck list so people can checkout cards easier.
