4 speed od or 5 speed

Well there we go. Those ratios present %splits of 61-62-70-79. What that means is; what ever you rev the engine to in each gear, the rpms will fall to that %.
So say you rev 1st to 5000 rpm.; then it will drop into 2nd at .61 x 5000 = 3050. and coming out of 2nd at 5000, will enter 3rd at .62 x 5000 = 3100. and coming out of 3rd at 5000,will enter 4th at .70 x 5000 = 3500. and coming out of 4th, will enter 5th at .79 x 5000 = 3950. That's a fairly nice progression. You get two fairly wide splits to get moving, and two progressively tighter splits to help you trap well. This would work well with 2. 94s or even less. The starter gear would be 2.94 x 3.83 =11.26 a great teener gear, and O/D would come in at 2.94 x .79 = 2.32 a fabulous O/D, bringing your hi-way revs to about 1900 rpm@ 65 mph. Again, great for a teener.
All-in-all, a pretty good deal. Especially for a smaller engine with plenty of torque but perhaps a limited amount of top end power.Just like a teener! If it can handle your teener, it could be pretty sweet.If it could handle 440 ftlbs, I'd be out shopping.