gearing vs mpg
If you're interested, I have a set of coarse-splined 2.76 gears and yoke I've been trying to sell. They came out of a 742 case. PM if you'd like to know more.
Also, perhaps try to find a gauge that alerts you to how much vacuum you have while at different operating levels and tune with that. There's an older one called the "Motor Minder" by Stewart Warner. Not sure if anyone makes something like that anymore. They used them in mileage runs back in the '50's and '60's. See pic below.
If you're interested, I have a set of coarse-splined 2.76 gears and yoke I've been trying to sell. They came out of a 742 case. PM if you'd like to know more.
Also, perhaps try to find a gauge that alerts you to how much vacuum you have while at different operating levels and tune with that. There's an older one called the "Motor Minder" by Stewart Warner. Not sure if anyone makes something like that anymore. They used them in mileage runs back in the '50's and '60's. See pic below.