T6 turbo dart

Loving your build, all very quality work!
On your aluminum welds, if you would like less arc erosion zone (the white next to the bead)
Try a bit of pre-heat (about 250f)
And turn the gas down as low as possible you can sometimes get as low as 3cfh, but around 10 should do the job.
BTW, what are you using for a welder?
Keep up the amazing work!