Dan ran 110 octane all the way around. So Dan has to get race gas at $5 a gallon + nitrous at $2 a lb. Most big HP turbo cars use C16 at $7-8 a gallon. Its all about even. Both types of combos require extra ttention and some preplanning to hit big HP #s.
You could do a nitrous kit similair to Dans for about $1800-2000 not including labor. You dont need a stand alone computer. For Dan to make these numbers with a turbo he would have spent in the $10k-15k range. Ultimately the turbo would make more power. But when you arent reaching for ALL possible HP and omly need 800-900 from a 408. This type of nitrous kit is a good option.
One little sidenote. The NX controller that Dan uses goes for $199 plus $99 for the noid driver. Thats a hell of a system for that price.
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if it's cheap & reliable, it ain't fast, if it's fast & cheap, it ain't reliable, if it's fast & reliable, it ain't cheap