Here ya go, not sure who you talked to at kb but I have a single 40 amp kb bap on my car lol.
It goess a little like this.
Single 20amp bap = single pump/single fpdm setup (reg gt)
Single 40amp bap = dual pump/single fpdm setup (03/04 cobras etc)
Dual bap = dual pump/dual fpdm setup (gt500)
Single 20amp
http://www.brenspeed.com/kb89067.html
Single 40amp
http://www.brenspeed.com/kb89069.html
Dual 40amp
http://www.evoperform.com/shop/index.php?main_page=product_info&products_id=108
And here are the part numbers and price list straight from kb website.
** KB89066 KIT 229.00 BOOST-A-PUMP 20 AMP (ALL VEHICLES - NORMALLY ASPIRATED)
SPECIFY VEHICLE
** KB89067 KIT 229.00 BOOST-A-PUMP 20 AMP (ALL VEHICLES - SUPERCHARGED / TURBOCHARGED) SPECIFY VEHICLE
** KB89068 KIT 249.00 BOOST-A-PUMP 40 AMP (ALL VEHICLES - NORMALLY ASPIRATED) SPECIFY VEHICLE
** KB89069 KIT 249.00 BOOST-A-PUMP 40 AMP (ALL VEHICLES - SUPERCHARGED / TURBOCHARGED) SPECIFY VEHICLE
** KB89063 KIT 459.00 DUAL BOOST-A-PUMP 40 AMP "COMPETITION" ('07 UP SHELBY, FORD M-9407 GT05 DUAL PUMP KIT) 20.5V
** KB89064 KIT 449.00 DUAL BOOST-A-PUMP 40 AMP "STREET" ('07 UP SHELBY, FORD M-9407 GT05 DUAL PUMP KIT) 17.5V
** KB89072 KIT 239.00 DUAL BOOST-A-PUMP 40 AMP "COMPETITION" 20V SINGLE PUMP-SUPERCHARGED/TURBOCHARGED(SPECIFY VEHICLE).