Yeah I think the tranny could use it anyway. I'm getting about 14.5 mpg with current set up and with prices the way they are, I don't want to go backwards there. what rpm converter would be good for the track and still be ok on the road?
the gear ratio: thats a good question. whoever put this rear end in did two things wrong. A) no tag B) old speedometer
all I can tell ya is the odometer reads 1.2 for every mile covered. It idles at 700rpm and does 60(72) at 2700. I thought I could do the math but when ya add in the bigger wheels it gets tough.