Supercharger or turbo?
 

Which one is the best and the cheapest for a 94 blazer\350 motor...thanks!...3.42 rearend..

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It all depends on what you are trying to achieve. Do you want more low end or more top end? If you want more low end power, get a supercharger. If you want more top end power, get a turbo.

I can't quote you a price on a turbo right now. But the supercharger will probably run you around $2600 to $2700 and then you would need to pay for shipping. The trusted supercharger around this forum is a Wynjammer.

Wynjammer

I'll get back to this later this eve after work & a few beer. In the meantime search the forum! There are a lot of threads & posts about both & how they compare.

Supercharger is bolt on, turbo requires a bit of fab. Just something to think about aside from the cost.