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So just finished watching an episode of Engine Masters on Motortrend. They dyno tested a motor at different states of the headers being dented. Started off mild....and progressively got more extreme. ZERO changes in TQ and HP until they basically smashed em nearly flat....and lost only 8HP...

Anybody ID these? Guy I got them from said they are TTI's came off an A-body with a 440. They've been chopped on and welded a bit. I like the idea of long tube TTI's but i'm NOT willing to give up power steering. For 75 bucks I figured worth a guess that maybe somebody chopped on them to...