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PostForum: GM Performance Forum   Posted: Mon Jan 13, 2020 5:06 pm   Subject: 411 swap for 1998 chevy 3500

Hi I am new here I just found this forum. I recently built a 383 with a TPI and installed in my 98 Chevy 3500 with 4L80e trans. I had it Dyno tuned 249hp 460tq. The tuner told me if I swap to 411 pcm ...
 
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