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Thread: question about slowmaster..
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12-17-2005, 06:19 AM #1
question about slowmaster..
Okay here is the question...I have most boltons besides heads and cam..I do have a pcmforless tune also,,,my biggest mod is pacesetter longtubes.., I don't have a cat,egr,air...I had a magnaflow muffler on it, but for some reason after the header install, it blew a hole in the muffler, so I put on a flowmaster muffler,,how many horses is this costing me over the magnaflow? I only dynoe'd 265hp. and 302 tq. but I was alittle rich, I fixed the problem, by getting a afpr, because I put a walbro pump in, and was idling 42lbs. fuel press. at idle, got it down to 38lbs, and had alvin at pcmforless lean me out alittle...It felt stronger when I had the magnaflow on, I kept up with a 2000 ss. on the highway, from 60mph. he jumped ahead a car, but could not pull anymore up to 130, then we shut down...he had a 6-speed though, anyway I never dynoed with the magnaflow, I am just curious should I go back to the magnaflow, or hooker muffler, could I gain 10rwhp. by changing the muffler, and is eldelbrock also a pretty good free flowing muffler...thanks..
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12-17-2005, 07:29 AM #2
- Join Date
- Dec 2002
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- n/w chicago
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- 54
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- 6,932
black- 2000 nhra edition formula
i would get a hooker muffler. youll gain a few in h.p.
2000 nhra edition formula
a few bolt ons, 379 rwhp
11.96 @113.25
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