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This is going on a Forged 426. I just can't decide. The kb looks better(doesn't have the filter laying on top the engine bay). Makes good power. The procharger can make good power also. Any suggestions from people that actually have one or the other.
 

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I like the looks of the KB better but the D1x will run cooler and probably run faster at the track. Why not the F1x procharger?
 

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I run a F1A-94 Procharger on my 426 and love it. Have also built a friends car with a 4.2 KB on a 426 and it too is awesome, wont go wrong with either. Both cars are over 1000whp and street driven regularly.

I prefered the procharger due to my car being 6 speed manual, his is Auto with war viking trans.

My only issue with any PD blower is air to water temps take longer to cool unless you build a proper tank, which I did for the 4.2 KB car.
 
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