Does a throttle body spacer realy work?

[4x4chevy]

I have been looking for some cheap bolts ons and i ran across the spacer for like 70 bucks,it saids you can reach 10 more hp and tq with it.But has any one ran one or know of one worth buying,also i have a 94 k2500 350 tbi stock exspect exhaust.thanks

 

[///RAGMC]

They work great on the TBI motors

 

[1990GMCSIERRA]

they make an awesome wistle,atleast the airaid ones do
i dont believe they help u much except for on mpg's,just my opinion

 

[noremac]

i have only heard of gains on tbi engines... nothing on vortecs

 

[4x4chevy]

Is there any brand the works the best on the tbi,there arid and jet and gm performace too am looking for a good one so when i bolt it on i can feel alittle.

 

[1990GMCSIERRA]

id go with the airaid

 

[94blu1500]

cfm-tech has one that is open under both throttle bores

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it lets the cylinders on either side draw air from both sides of the throttle body

 

[1990GMCSIERRA]

now i like this one

 

[redchev95]

JET makes a good one airraid's swirl is to fine looks like pipe thread jet has a nice swirl to it

 

[1990GMCSIERRA]

my buddy has a jet