I'm going nuts.anyone have the diagram for the gauge cluster on a 90 firebird v6 and a 90 camaro rs with 305tbi,my swap of a v6 out of a 90 firebird into a 90 camaro went great.but tach and speedo wont work.I've tryed 3 different clusters and a different vss senser.I've got the ecm out of the firebird and all related parts.the only thingnot out of the v6 firebird are the harness behind the dash,gauge cluster and the sencer that helps the tach change the pulse over to rpms.I know I need to change that but cant figure out where it is or what it looks like.Is it a little white box with 3 or 4 prongs?these things gota be pined different.only things not working.All other gueges working fine!HELP!!!