87 Throtle body injection needs gone. Nov 10, 2016 13:26:28 GMT -6 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by oldman on Nov 10, 2016 13:26:28 GMT -6 I'm sick of wasting money on this system. Can anybody tell me where to get step by step instructions to change over to a carb system including wiring ? 1987 Silverado 454 auto. Thanks