Exhaust Blowout on a Mopar 300hp Crate
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With the positive response in output gained by going to the step header,our next change was to determine if even bigger would be even better. Wewent to a pair of 13/4-inch Hooker Super Comp headers. The Super Compsare race-style headers with slip-fit collectors. With this 360's mildcombination, the Super Comps proved to be overkill, with output laggingthe step header, posting 321 hp at 3,700 rpm and 420.7 lb-ft of torqueat 3,700 rpm. As a point of reference, we have seen the Super Comps add10-15 hp to a standard 15/8-inch header in engines of the 450-500hplevel. View Related Article
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