Quote:
Originally Posted by 72c20customcamper
Easiest header install I’ve ever done . One glitch the rear bolt on number 2 exhaust wouldn’t make the angle to go in . I heated the header and put a tiny dimple and it went right in . Headman offered to replace them under warranty but it was so minor I didn’t go that route . The headers fit perfectly .
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I read an article years ago, it may have been David Freiburger of HotRod Magazine where they dyno'd a SBC engine with new perfect headers, they then gave the headers the the old hammer to fit treatment.
The pulls they performed showed no measurable difference in performance.