MTG: Red deck wins help?

Could you help fine-tune my red deck wins deck? I've already won one FNM with the deck, including beating what looked like a competitive Jund deck 2-0 (I didn't see much beyond numerous creature lands, bloodbraid elf, putrid leech, maelstrom pulse, sprouting thrinax, and blightning, but since the deck only lost to mine, I would assume it was highly competitive). The sideboard needs the most work.

Cards: 60

4 Goblin Guide

4 Hellspark Elemental

4 Kiln Fiend

4 Ball Lightning

1 Hell's Thunder

2 Elemental Appeal (do not say that I need to switch out these for Hell's Thunder. I'm already working on it)

Creatures:19

4 Lightning Bolt

4 Burst Lightning

4 Searing Blaze

3 Earthquake

2 Staggershock

2 Seismic Strike

Other spells: 19

17 Mountain

3 Teetering Peaks

2 Arid Mesa

Land: 22

Sideboard:

2 Staggershock

2 Seismic Strike

4 Magma Spray

2 Devastating Summons

4 Dragon's Claw

1 Earthquake

Please give specifics and reasons behind any changes you suggest, and what you would sideboard in or out against traditional deck setups for each of the currently competitive decks in Standard (Jund, white weenie, blue/white control, bant, mirror match).