A bit of general info about upper intake choices
The rule of thumb is ..........
longer runners yield more torque down low but fall away sooner
Examples of these would be OEM Cobra, Edel Performer, TFS Street Heat
Now ... shorter runners are gonna shift the power band up

thus
Torque down low will be less

but
The upper part of the rpm range will be stronger
Of course ... Cam design goes hand in hand here
Never the less ... Upper intake choice should be considered :Word:
I don't wanna make this post turn out to be a novel

but
As always ... one's application is paramount in intake choice
I bring up this stuff since you have seen some here say .....
Use long runners and others say use shorter runners
Lets keep our focus on a street car that might see a bit of track time
Also ... we are talking NA only and sticking to the OEM block
Last thing is ... radical cams are out for drivabilitly reasons
So you can see why the TFS kit fits the application of many peeps
Now ... we come to the compromise in upper intake selection
What you may not know is .............
You don't have to go from one extreme to the other with your choice
Instead of going to the shortest runner intake
You can split the difference with a mid length runner intake
TFS makes a mid length runner upper which it the Track Heat
Edel makes one as well called the RPM, RPM II
Typhoon is a China Edel RPM knock off
As said above ... the shorter runner will hold the power longer
but
The lower part of the power band will be softer
The objective here is to NOT achieve a combo that has an OEM GT40
kinda power band ... Good power down low but peters out around 5K
You see ... with the TFS kit ... you got h/c/&i ALL working together
The heads AND the cam will ALLOW you to make power above 5K
Now ... ready for a couple more rules of thumb
1) LT's promote more low and mid range torque than shorty's
2) An aggressive spark curve will promote more low and mid range torque
So
One could utilize rule of thumb 1 & 2 to .......
Prop up the soft low end of a mid length runner upper

thus
Allowing one to have his cake AND eat it too
It needs to be said ... a tune is a MUST for one to be able to
take advantage of #2 from above :Word:
Whew ... Not Quite but Close to a novel
Grady