Because that's what Mr. Dowd says is the process in use..
1.20 or 20% for 2V Carburete
1.25 or 25% for 2V FI cars or older ECU cars
1.30 or 30% for Multi-Valve FI cars or Modern ECU cars
1.35+ or 35%+ for V-Tech, Vanos/Double Vanos, or other engine designs known to have higher potential/gains
http://www.sccabb.com/forum_posts.asp?TID=8861&PN=1
See post #2
Unless, I've missed something on Charlie's car, I could swear it had a Carb and I'm pretty darn certain that there is no ECU on it.
The G2 certainly isn't an older ECU vehicle - it's a 90s vehicle -- so it either gets a 1.3 or 1.35+.
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