408 5.9 computer

[408 sam]

Hello I'm Sam I'm 17 and worked my ass of for my 408 in a 1998 dodge 2500 and was wondering if I need a modded pcm or tuner to even run my engine once I drop it thanks for any comments.

 

[dodge dude94]

You'll need a custom tune on the PCM to run the 408. Otherwise it'll run way too lean and nuke your brand new engine.

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