Yep, flux core wire sux bad. You gotta use the gas shielded to get a nice smooth weld.
I used flux core wire to weld in some sub frames at a friends house once. I will never use that crap again 
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92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim.
00' Lightning-Stock
88'CRX-13 second ego killer
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