While searching for turbo parts I found this can get good info here
http://melett.com/turbo-parts-catalo...HX40-HX40W.pdf
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97 12 valve HX40/HT60 Twins, 0 plate FF, 2095 plug, AFC tweaked , 4k gov, 16*, Weston's 5X.014s, 5in from turbo to stack, Twin Ram, HTT manifold SB 3250 DD Gauges up the wazoo.