Outer Limits 4x4 Board

hi , I've got a land cruiser 100 series with aftermarket turbo running about 10 psi boost the standard clutch is slipping wondering if anybody could tell me a good clutch to look at

The Exedy, is certainly worth a look, ive got one in my 79 the HD (heavy duty) version, most 4x4 outlets stock them, the full kitt HD was around $640 from memory