I used a flat panal, but as I welded it along, it bent to match the subtle curve. Yes, I weld very slowly with bird droppings. so tack every 6" or so, then wait for it to cool, then split the difference, let it cool, then split the difference...
MPG is definitely not the #1 thing I'm after, I own 3 other vehicles that get much better. I just didnt want to get rid of the 100 for an LT swapped 80 that gets 6mpg or some thing ridiculous. Also an Escalade has a curb weight that is...
I’m not OP and I’m sure he’ll have real world data. That said, My LT swap is just a pile of parts in my garage… and I’m in it more than $15k… I could buy a lot of fuel for what I’ve thrown at this project.
I wouldn’t make MPG improvement your...