Trick Flow lower, whats up with this?

[stykthyn]

The last 2 pics I posted are trick flow ads from trick flow, even on thier site they have the grooves ground into the lower intake..

Trick Flow® Track Heat® Intake Manifolds for Ford 5.0L: TFS-51500002 - trickflow.com

Trick Flow® Track Heat® Intake Manifolds for Ford 5.0L: TFS-515B0002 - trickflow.com

yea, but the grooves in the ad dont look like they were made by a drunk 5 year old.

 

[skunk21]

yea, but the grooves in the ad dont look like they were made by a drunk 5 year old.

true

 

[68stang351]

I have one for a 351w and it doesn't have any of that.