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Mod | | | Forums66 Topics128,069 Posts1,055,886 Members48,428 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Apr 2008 Posts: 502 Shop Shark | | Shop Shark Joined: Apr 2008 Posts: 502 | We did a valve adjustment yesterday morning, BIG Difference, but still a difference in sound- I am wondering if the newer muffler is giving the engine more back pressure than the older stock muffler? I though about hooking up an old stock exhaust to his and seeing how different it would sound. | | |
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