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Old 08-31-2005, 03:27 AM   #1
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wanted to see if anyone has any advice tips or comments on my exhaust setup? I am in the process of installing my new 406 into my 87 camaro and wanted to know if exhaust should be alright. I am going to be running a 650 holley dbl pumper on this. but it has hedman lt 1 5/8 to 3" and I am wanting to run true dual exhaust. is there any known problems with this or should I use bigger headers (primaries anyway) 406 has bowtie heads and air gap intake. 10.14 compression. any advice is helpful. Thanks
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Old 08-31-2005, 01:08 PM   #2
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Not knowing your cam, it sounds like you're marginal with 1-5/8" primaries.
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Old 08-31-2005, 02:41 PM   #3
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If it's a wild motor I would go with larger primaries. I have 1.75 SLP headers for my car
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Old 08-31-2005, 02:47 PM   #4
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oh yeah cam is hyd. flat tappet. .480/.480 duration at .50 is .230/.230 advertised duration is 292/292. lobe seperation is 109.
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Old 08-31-2005, 02:47 PM
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