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PostForum: GM Performance Forum   Posted: Thu Mar 23, 2017 10:00 pm   Subject: 99 Yukon L31 0411 tuning

Thanks for the replies.

Hog- I had Jeff set up my base tune, he's local and was able to meet him at the dealership, he had to do a little research on these injectors but they are set to 36lb acros ...
PostForum: GM Performance Forum   Posted: Wed Mar 22, 2017 1:13 am   Subject: 99 Yukon L31 0411 tuning

I know the injectors are a little big but I plan on putting a turbo on it after the trans and rear axle swaps. I adjusted the FPR down to 40PSI theoretically making these flow around 32lbs/hr.

Als ...
PostForum: GM Performance Forum   Posted: Tue Mar 21, 2017 11:36 pm   Subject: 99 Yukon L31 0411 tuning

I finally subscribed to the forum after trolling it numerous times, especially on the marine intake sticky. My name is Jim and I have some tuning to do and have a few questions to anyone who has HP Tu ...
 
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