What is the HP Gain from Polishing a stock intake.
 

What kind of HP can be gained from Polishing and Porting a stock intake on my 98' 4.6L?
I like to do those cheap mods that help performance. P&P is a easy, cheap mod, if it will help.
Thanks

I've done extensive research on this...

on a 4.6, maybe between 10-23hp at the flywheel.

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TRUCK
White 00' XLT 4.2 Auto Sport
Regular cab Styleside
3.55 non-limited slip
Superchip
Airaid FIPK
custom ported STOCK throttle body
1/4 ... 17.221@81.35MPH

PC
Thunderbird 1.1ghz @ 1.33ghz
Abit KT7A-Raid
384mb Kingmax PC-150 ram
60gig IBM 75gxp RAID array
Geforce2 GTS 64mb

So, basically not enough to go to the trouble, when you could bolt on HP with easier ways?