Guess on gears in a '74 318 Duster with 8-1/4 rear

If you still have it on the lift, just mark the inside of right rear tire and a point on the pinion yoke, rotate tire exactly once and count revolutions of yoke.

A friend advised I do the same. She is home now, but easy enough to jack her up. i could just put the trans in neutral and count the yoke revs with on full turn of the wheel right?

There are many mysteries within this nice little 318 I bought carb to pan. The builder is unknown but it has a purple cam with a .480 lift. That all I know about the cam. The motor lopes really nice at idle. The seller of the motor suggested I stay with the stock "high stall" torque converter so I did.

The seller was a speed shop owner who acquired the motor, which was not fired until it was in my car, when he swapped it out of a Demon that one of his clients bought from a divorce situation. His shop kept the 318 as part of the compensation.

It has Keith Black pistons and the interesting thing is the heads are stock 74 318 heads but they have the 360 1.88/1.60 valves in them and they are very nicely gasket matched and blended.
It has a performer
Intake and a 600 cam Holley street avenger on with with 340 hi-po exhaust manifolds and straight 2-1/2 duals.

I look at it this way. I like that my car left the factory a 318/904 car and it still is a 318/904 car. It just has some
Performance enhancements.

My 69 318 bone stock 2 bbl barracuda would blow the doors off most anything off the line. So this thing should be a hoot to cruise around in....
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