Hey guys. Right now I am running the 05 track lower plenum in my car and it does provide good gains up top. I plan on doing a TS reflash soon and I heard that will bring out the best in the lower plenum. I really don't care about the power lost throughout the rev-reange because my headers/HFC's usually make up for it. So my question is this...what would you guys do in my posion... keep the lower plenum or put the stock 287 lower plenum back and get the Motordyne spacer? Which would provide more gains after I do the reflash. I think the spacer also adds midrange power but loses up top... is that true? Thanx for your help.

 

PM Hydrazine (Tony) from motordyne. He has probably done more fiddling with various "rev up" possibilities than anyone else on the site. He would be able to help you

 

The spacers actually add to the high RPM. Not the mid range.

Its the 287 plenum that will add midrange. Combine that with a spacer and you get good mid and high gains.