LS7 Intake

[LS7 Z/28]

Greg from AUS has one of these on his motor... I don't think it's much taller than a Harrop.
http://www.ozmoengineering.com

I'm not all that knowledgeable on this subject but a '63 Impala drop top doesn't sound like a track car, so I would convince him to keep the stock intake for driveability.