This is in a turbo trans am. The speedo stops working until I get over around 30 mph and then it starts working again. This is intermittent. Also the trans will pull good one time and seem like it doesn't want to even get rolling at other times. I have a 3200 L/U Vigilante. I also get some smoke in third going uphill at WOT. When it did this is when I have started noticing the speedo problems but not at the same time. It is full of fluid right at the top of the full mark. Any insight would be appreciated before I tear this thing out.