Ran a couple 7.40s @95mph today when it let go I noticed it started to run a little rough through then run then boom, a bunch of white smoke and sure enough running rough. And puked a bunch of oil out the passenger side pcv.
Sorry to hear , but stock motors only last so long with mo power
Don't take this the wrong way either but weren't you messing with the tuning yourself? What kind of egt's were you seeing. Do you know what your drive pressure was?