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Re: tunning for open headers
Quote:
Originally Posted by BIGJOE
When you remove the mufflers, you should ALWAYS put an 18 inch long collector extention on the header flange. I have seen cars gain one half a second with this extention all by itself. This will keep your jetting in line with what it waas through the mufflers,
JOE SHERMAN RACING ENGINES
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Man that is old school. But it works.. Keeps your torque curve up and was a ole super stocker trick decades ago. Use to make them longer than 18', like 26" and put a white paint line down the lenght and where the paint changed colors you would cut them off there. I believe that was in a old Hot Rod magazine article in the late 60's. Joe, thanks for the flash back....
Jeff
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J Jackson
JN Motorsports
www.OldGuysGoingFast.com
TAD, S/C, S/G and S/S
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