I was just reading something online that a TB spacer does nothing for vortec engines... I just want better gas mileage, i don't care about HP/torque because i don't need it. I have my dads truck if i need to do any heavy duty hauling, but because of my blazer and its gas mileage, i need better

 

my 89 k1500 got 1mpg with a helix power tower spacer the whistle sounds awful this is with 35 " bfg muds i think mybe better on stock for mpg gains

 

what happens if the EGR plate is removed..

 

1mpg? Wow I bet that sucked, anywho, so is it plain pointless to get a tbs for the vortec blazer? I want to get better gas milage but the money saved on a tbs is better spent somewhere else if it doesn't even work on a vortec.

 

I also have a Helix Performance Throttle Body Spacer on my 2006 4.3L. Don't buy it if you're looking for thisbig jump in horsepower. As far as torque is concerned though, I was able to notice a difference in the rear wanting to break loose. The throttle response is better and gas mileage went up a couple mpg in conjunction with a cold air intake and better exhaust system.

For those who say that it doesn't work, you may have been expecting something out of it that it's not necessarily designed to do.

It costs around $90 from JCWhitney and you'll make that up in no time with the effective gas mileage.