Very well said ^^^

I came across a BBK
This is the cheapest setup I have come across but its 78mm? (TB and Plenum)
Too much?

$249.99 USD
Let me know what you think

That's actually a decent price for a combo.
A BBK 75mm tb is usually around 179-199 on its own so for a tb & plenum for 249 is not bad.

What about the fact that it is 78mm
Would it still be a good setup?
I was orignally only going to go 70mm

Well, if you are staying naturally aspirated a 70mm will be plenty.....even with the stock upper plenum.
However, if you are planning on going with a 75mm tb regardless, then this is a good deal and 78mm shouldn't be any worse than the 75mm. The thing about the 75mm and this 78mm is that they will give the big gains only if you are supercharged or turbo'd.

If you are planning on going with a supercharger down the road why not.
If you know you are definitely not going with a s/c then you'd probably be just as happy with a 70mm.

Yeh...Several years time I plan on getting a supercharger...
However, that wont be for a while...
The 70mm and plenum (2 pieces) are the same price and definately do not look as good as this 78mm combo from BBK, thats why I was going to purchase this one as long as it didnt have any negative effects on performance before I get my supercharger in the years to come