Well let's reply to the various items listed:
1. We're direct injection so there aren't any injectors and don't look for any yet.
2. Don't you trust the build quality of the car? I know of a stock block SRT-4 locally running 10's on stock axles, slicks and the stage 3 mopar kit along with fuel and misc upgrades. Not that I'm expecting 10's but some low 12's would be nice.
3. The ATP prototype ran 12.8@108 from what I understand so 12's have been done.
4. I work out 7 days a week, what's your point? Here's my last car -
www.azsupersport.com held the national record for a bit for bolt ons car with power adder - 12.3@110. Later went 12's on street tires with the mini-tub. Over 60K miles on the stock motor with 175 shot. If you're careful, more power can be safe.
5. I have a liquid to air top mount intercooler, WAY nicer than a FMIC, less pressure drop and cooler intake air. If I decide I want to I can add an ice resevoir for even colder intake temps at the track. I gained 3 PSI from stock IC going to my top mount.
Don't take this wrong but you posted the question, who will be the first to dyno 300 WHP, it's been done. Then people started qualifying it with the stock turbo, unfortunately they don't understand the compressor maps of the K04-22 and probably dont' realize it's limits. I can tell you how to get 300 WHP right now, very easily done:
1. XEDE or CP-E engine management
2. 50/50 water/meth mix - with tuning should be good for around 40 WHP on top of 93 octane or 20 WHP over 100 octane fuel. These are actually on the low side.
3. ATP DP with cutout, electric or VES
4. Cold air intake
DONE.