[dwill3015]

I pput a TB spacer on my 87 Blazer and that plus a chip woke it right up anb boosted performance. I never figured mileage on it though. I would however recommend installing one.

 

[dwill3015]

Thanks Man...I have been on the fence about getting one for my 1995 but I didn't see anyone saying that they actually work.

What about the whining sound? I have to admit my hearing isn't that good. I probably wouldn't even hear it. I think I am going to order a Helix Spacer. Which one did you use?

Mine was a Helix and I purchased that plus the chip through JC Whitney. I think was are sponsored through them and get a discount if I'm not mistaken if you go through the link on our web site.

As far as the whine or whisteling sound, I only heard it every so often but it just made me feel like it was doing what it was supposed to do by creating a turbine or cyclone with the air/gas mixture causing an increase in performance.

 

[dwill3015]

You know you got me thinking about this .....and frankly I didn't really put much thought into the idea, however, I started looking for a spacer for my 95 2500 Suburban 4x4 7.4 TBI. There is no listing for that model.
They have a listing for the CK Pickup 7.4, but the carb numbers do not match.

Any idea's why????

Is it the air cleaner spacing?

Computer make-up

?????Any Help
Thanks

I looked on the JC Whitney website and found listings for your application. Here is the link

 

[dwill3015]

I think when I bought mine there was only the swirl version. It really did boost performance. I feel as far as getting better MPG's, driving style plays a big part. When I installed a K&N CAI on my wife's 2001 Suburban 5.3, it was like night and day with low-end response and acceleration so we went through a period of getting used to the new found power and used it often (I even raced a few kids and their imports from stop lights to show them the big red rig had some poop to it:lol: ) but also with an increase in performance, the less pedal you have to give it to move the big rig so in the long run it did improve mileage.

 

[dwill3015]

Easy now! :rofl:

I may be 41 but give me a reason and it feels like driving my 1970 Chevelle in hi-school all over again.....:rofl: