Looking to the front yard, a bird in the hand is worth, wait, a bird in the bush is worth... no, the darn thing just flatly missed the birdbath. Wow, the water sure feels funny today!
In my opinion, I say leave it alone. At <250 HP, I don't think you'll see significant gains. Considering, this is your first Cummins engine and it sounds like you haven't done porting before, you won't have anything to compare before/after. If you decide you want more power later, the cylinder head is easy to pull and re-install. I'm speaking from my experience with 12 valves as I have never owned a 4BT. If you pull the head for porting (and additional power), you can reinstall it with ARP studs.The ports on the head are already smaller than the exhaust manifold ports. would it be advisable to just leave it alone? The exhaust gases are already going into a larger chamber once it hits the exhaust manifold.
The mandrel bends from silicone intakes tend to run ~$20.00 each and have beads formed on both ends that was the route i took and it was fairly inexpensive in the long run......$.02Looking at prices this won't be cheap either. A five-foot section of straight pipe is $111.00. Vibrant does have some cool stuff though. I was surprised their bead runner was $379.00 and the same product bearing the "Vibrant" name at Summit was $319.00.
Charles I have used it all and more, those inner fenders are "one offs" and sit ~6" lower that the factory ones.Ah shuck, Steve. I thought you'd invented the first invisible air cleaner. LOL. The one nice thing about the old Ford trucks is they have big, roomy engine bays and looks like you've used most of it.