-H.E.I.-, V8, big block,, manual trans. Note: Modified for use with a GM H.E.I. distributor.... see more-H.E.I.-, V8, big block,, manual trans. Note: Modified for use with a GM H.E.I. distributor. Cars with factory gauges or A/C require use of #17740 T.C.S. JUMPER HARNESS