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Experiences with hp enhancement with a Weiand 142?

Brassplyer

Member
Joined
Nov 2, 2018
Messages
17
Location
Florida
A guy at a local speed shop insisted that a Weiand 142 is going to add around 200 hp at 6 lbs of boost on a 350 crate motor that's supposed to be rated at 355 hp. I haven't put the car on a dyno yet, what I've read about a 142 is that it's good for somewhere in the neighborhood of 80 - 100 hp.

Is this guy full of it? If you've had a 142, what kind of hp enhancement numbers did you see?
 

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