i converted that because i had no idea what that was in miles to gallon and it came out to 2.6 gallons to 62 miles which is about 23 miles per gallon.
Oh, and to answer the intercooler question, for the prices anymore, just buy a FMIC. Unless you can snag a free SMIC and can fit it properly, I wouldn't
What motor is it? Power goals? Spool goals?
For a D series, if it it stock and you intend on keeping it so, ~200-220 is usually a solid power