What about the Helix Power Tower Plus?
The one on here is only $86.47.

 

im not sure how you're AEM attaches to the throttle body but my K&N replaces the three bolts that hold the old plastic down. the new metal bracket that came with it would make it hard to attach a TB spacer... rather than a TB spacer, i would prefer a new bored throttle bodyits larger in diameter and comes with a much thinner throttle blade that would help much much more than a TB spacer.

 

I want that throttle body, that would be perfect!!

 

the guy used to sell just the throttle blade for it, one that would fit the stock TB but the air deflector on the bottom of it was shortened. he was selling them for like $30 and i wish i had bought one.


http://www.cfm-tech.com/chevy-vortec.htm they sell the throttle balade for $40 and a 75mm throttle body for $200. the eBay one i linked to above is 78mm... and cheaper too

 

That seems like a good idea, but mine just has that plastic black part that screws right onto the TB. I think installing it should be easy, but I've seen a lot of websites that said certain TB spacers wouldn't fit with K&N intakes.

 

you should be okay then, i just wanted to warn you about the possible problem before you bought one.

i've posted this before but ill show it again for anyone with ?'s about how the K&N mounts... if you look closely at the metal bracket above the throttle body, there are 2 screws on the front and 1 screw on the back. all 3 screws on the bracket are screwed into a 1"-1.5" metal nut thats screwed into the TB.

it can be done, but installing a TB spacer along with the K&N GenII FIPK can be tricky

 

That's basically exactly how mine looks, with the same type of screws.

 

The TB blade mod can be done in your garage. Be careful though... I saw no performance increase on a 0-60 (timed through my AutoEnginuity Scantool) with and without the deflector. I completely removed mine on my old Bravada and the only thing that changed was the throttle response off idle. Nothing else changed performance wise no matter how many times I ran it. I did 5 before runs and 10 after runs and the averages worked out to be the same (wish I could find my files...).

That and with the deflector completely removed and driving it like that for awhile, I started to see differences in the burn on the spark plugs. The front cylinders looked to be rich while the rear looked to be lean. Only explanation that I can think of is that the EGR gases were getting pulled into the front cylinders more so than the rears, displacing oxygen which is required to burn the fuel. This all caused by the lack of the deflector which would direct more of the incoming are towards the center of the intake plenum, pulling the EGR gases along with it.

A larger throttle body may help things if you have other modifications (headers/exhaust and/or cam/rockers), but if removing the deflector didn't show gains on a stock engine, I don't think that a 3mm larger TB will...

 

That is a bummer, darn I was kinda looking to do that throttle body but non the less I am going to do headers and port matching and some other odds and ends and that might bring me to getting that throttle body if it really will work with other mods!!!