OK everyone.....you were helpful to get me on the right tract for my speedo issue, now here is an issue I'm sure some of you have encountered. My 66gto has a newly re-built 389 and I'm continually having starting issues. I first thought it might be the common"Hot Start" problem that many GTO's have. When it occurs it usually happens after I have driven it a bit and try to re-start it after a short break. The solenoid doesn't even make a sound and the amp gauge pings over to about -30 amps when turning the key. I replaced the starter with a high torque type and it still happens. Now it is happening even when the engine is cold.....the first start up. If I put a battery charger on the battery it seems to help most of the time...but not always.....Oh ya, I replaced the battery too and the negative ground cable. I thought I would try a remote solenoid, but it doesn't seem to be a "Hot Start" issue..... I'm thinking it might be either a bad ground somewhere....maybe put a ground strap directly from one of the starter bolts to the body of the car ...or maybe the neutral safety switch is grounding out or soomething............any ideas?