Alright! Lets work on an actual crack! On a test manifold
Drilled some holes at the end of the crack, but later saw it go further, so grinded past.
Cut a groove and ran a bead. Then put it in some media to slow cool it.
My feed issue is fixed, but I was not centered in the groove and it missed one edge. But still weld stuck well in the groove IMO.
Will still need grinding and some more passes, but I am happy with the result. Pinged it with hammer and it rang well.
I think I will next fix the smog manifold over the weekend and finish this test one up after.