throttle linkage for dual 97's

im running two strombergs on top my flathead. im looking for a throttle linkage kit... i want to stay with the ball joins instead of heim joints.. im finding kits for 3",7", 9" spacing of the ball joint ends...
my manifold spaces them at 5.5".... is there a kit that would fit this? im not seeming to find anything.. any help would be appreciated.

 

See www.vintagespeed.com

 

Buy the arms with swivels from Stromberg that clamp on the ends of the shafts. Then get a piece of stainless rod from the hardware store and your done.

 

thanks alot, i did some more research
somehow summit racing seemes to have it on stock!.. offenhauser part # 1004.. 4.5"-6" linkage kit.