You can have a pro make you one, or here are a few places ;
Call here http://www.steveschmidtracing.com/ca...roduct-39.html and they will sell you one off the shelf or make one custom for you.
Below are some others...
http://performanceweldingheaders.com/carb.htm
http://www.wilsonmanifolds.com/
http://www.barrygrant.com/bgfuel/default.aspx?page=60
http://www.magnafuel.com/products/ac...ates/index.htm
http://www.jegs.com/webapp/wcs/store...53769_-1_10289
http://www.jegs.com/webapp/wcs/store...62336_-1_10289
Reher Morrison at about 60.00 bucks a piece.