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after 3 days of consideration

I have figured my car put 1 million more engine revolutions on it during Drag Week than it would have if I had a .75 OD in it

I also figured out my fuel consumption per engine revolution.

I figured out that the OD should add 3.3 MPG to my current setup

I say that I would drive my car more than I do if it got better fuel mileage but the $300 a year in fuel savings doesn't pay for the cost of the 4l80e swap.

so for me, this trans swap is dead. plan on putting my 426 gen 3 hemi in the car. slap a little carb on it and see what kind of fuel mileage I can get out of it and hopefully make it daily driver capable

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Since you have the GV now, are you going to stretch out your oil change intervals too?