Jerry Hall aka motorgeek on here used to sell a sweet V2 reed with spacer combo years ago.Not sure if he still does.I have one on my 87 250...Might want to pm him.

Can also check ebay.Did a quick search,here are some.Pic shows a 6 bolt 88+ but the ad is actually for the large intake 87's

http://www.ebay.ca/itm/SUZUKI-LT500R-LT500-500R-QUAD-RACER-QUADZILLA-VFORCE-3-REED-CAGE-1987-INTAKE-/152578142322?hash=item23865db072:g:gZsAAOSwGzlTu8gi&vxp=mtr