anybody know who makes a supercharger for 1987 iroc 350. i want to keep the v belts

 

I think vortec is the only one that makes a kit for the v-belt system.

You could convert to surpintine and get an ATI. It would probably fcost you about another $2-300.

 

Nobody makes one for 87. They make them for 86 (all tradcitional v-belts) and 88 (serpentine belt) but not the weirdo hybrid serp/v-belt setup of 87.

Convert to a full 88-up serpentine system and then get a kit for an 88.

Been there, done that with my brother's 87 GTA.