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Weight reduction, suspension and traction tuning, and then you can look at adding power(which will require more tuning) then if that is still not enough you can look at a gear ratio change.


I ran 4.56 in a few rides. Gives a nice 0-60mph and makes even a pile feel powerful. As long as you dont plan on going over 60mph much they work out good. Your going to push a bit more rpm and have a bit more wear. But the acceleration is worth the trade.
 

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You can be stupid like me and run a manual sm465. I plan on running a BBC clutch dropping 5500rpm into the 3rd(1.7) gearing then pulling straight back into 4th(1.0) turning a wide selection of ratios in a 9" depending on the situation. Basically running as much as I can that will keep the thing going straight and stay off a 6500 limiter.

The sm465 is heavy at 250lbs w steel bell. But you can find one for around $300 and the 2wd ones can handle 600ft/lbs. BBC (500ft/lb) clutches can be had for around $250.

So for under $600 you can have a transmission that will handle 500ftlbs all night long. Thats less then most "stage" kits for other 5/6 speeds and is a fraction of what any "built" automatic will cost.

This is just what I am doing. Most people consider running a sm465 as a 2 speed dumb when there are others that will save 100+lbs of weight.

A 200r4 still has a few tricks to make it live behind a high reving sbc. Your not using that overdrive so a th400 would be the next analog choice. After that a built 4l60e or 4l80e could give you programable shift points and a bit of data logging.

A solenoid shifting 3 speed automatic can do some great things. But great things often cost great amounts of cash. You start getting over 400ftlbs on a 200r4 and the prices will go up.

If this thing is a weekend warrior and you plan on staying under 400lbs and under 6000 with that sbc then a 200r4 may live a long time.
 
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