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07-09-2005, 11:47 PM
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#1 |
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needin' money
Join Date: May 2005
Location: Chickasha, Oklahoma
Posts: 1,106
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what size exhaust
i have a newly rebuilt 350 bored .40 over, 268 lunati voodoo cam with matching lifters, springs, locks, and retainers, , h345np hyperuetectic pistons, 76cc cylinder heads, stock rods, and reground crank ( i don't think that matters), and a double roller timing chain, the specs on the cam are duration at .050 .227/233, the advertised duration is 268/276 the lift is .489/.504 the lobe seperation is 110 and the lobe centerline is 106 , hopefully i will be getting a performer rpm intake manifold, and a 650 holley double pumper, hopefully soon i will bump up the compression to 10:1 and get better flowing heads, anyways what size exhaust should i get, 3" or 2.5" it will be duals going into force mufflers, turned down before the rearend, or i might get it going out in front of the rear tires, it has headers on it also
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SWB Stands for Short Wide Bed |
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07-10-2005, 02:10 PM
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#2 |
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Registered User
Join Date: Feb 2003
Location: Midwest City, OK
Posts: 1,001
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Dual 2.5" with a X-over is plenty of flow. 3" duals is over-kill IMO..
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Robert Current: 1986 SWB Silverado 4.3 / TH400 Past: 1985 SWB Silverado 305 / TH350 - sold 1995 1987 1/2 ton Silverado - FI 350 / 700R4 sold 2007 |
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