Adapter for FTP 104
I know people have said there is no adapter for a FTP 104 lid to a stock MAF, but I was poking around intakehoses.com and saw that they offered a reducing insert. I am using a reducing coupling right now for my stock MAF to throttle body connection, but this looks like it would slip into the lid and adapt the inside diameter to a MAF.
Anyone used one of these reducing inserts? Not a reducing coupler, an insert. If not, I don't mind being a guinea pig... but would I go with the 4" OD to 3.5" ID, or 4" OD to 3.75" ID for an FTP 104 to stock MAF?
Ordered a 4" OD to 3.5" ID adapter this morning, I'll report back if it works for future LS1Tech searches...

Assembled on MAF:

Inside view:

Final Assembly:

I ended up trimming the adapter back to the second inside rib, then wrapping the part that slips into the lid with three passes of electrical tape, kind of like what you have to do with a 100mm MAF. It did reduce the distance for the coupler from the MAF to the TB, but those are cheap, so I just trimmed mine.
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I also like your shelf with the spray bottles. Where'd you pick that up?
The Best V8 Stories One Small Block at Time
The inside of the lid is admittedly filthy, that's overspray...
The MAF is actually a $70 MAF end set from eBay, I believe anodized. Thanks for the compliment, I hope to soon be replacing the throttle body with a black powdercoated piece and giving the lid another crack at a paint job. Also I sanded the color off the FAST and I want to do some custom scheme of Cast Iron and silver... all in good time!And unfortunately I don't know about the shelf, my older brothers passed it down to me more than 20 years ago, LOL!
But I digress, to try and keep this a little more on topic...








