Spectre Performance SPE-9849 4" Single Air Intake Plenum

These are awesome for a DIY intake on Magnum360. Great fit and finish. Will fit GM350 and many others I am sure. Coupled with 4” silicone boot, 4” aluminum tube cut down, to a Donaldson filter, with RiffRaff pre-filter. All but the pre-filter came from Amazon.

I had a makeshift cold air intake but it was only 3”. I wanted a 4” and have looked at this for over 2 years. Well I finally did it and I love it!They sell the carb hat, tube and an inline air cleaner. It wasn’t cheep but I now have a 4” ram scoop cold air intake and I am super happy I finally did it.The carb hat is nice. I still think it’s far too expensive but there are no other options.Fits a 4 barrel perfectly.Tube runs below my front bumper to pick up air as I drive.

Works great! Made vary heavy duty. I had hit 25 psi an it's fine. Fromthedirt66 on tiktok

First, if not for Spectre, I wouldn't have any way to adapt my carburetor to any air intake plumbing. This piece is beautiful and sits firmly on the carb airhorn. Superior piece over the factory stamped steel air cleaner housing.

Great carb hat for the price, I ran this on a sbf 302 with a single turbo kit and ran just under 20psi through it and held up just fine.

After attempting to make a plenum from stainless, I️ ran out of time and decided to try this for a coldness air setup on my jeep wagoneer with amc360 v8. Wanted to use a napa 6637 or equivalent filter (it’s a massive filter the diesel guys use on the ford 7.3l and Cummins 5.9 to build cold air intakes using a replaceable dry filter). I️ live in the high desert of Southern California and wanted to use a dry filter element but wanted plenty of surface area. This sits perfectly ontop of my edelbrock 1403 carburetor and my BAF (big a*# filter) clamps right onto it. Simple, effective setup. And this plenum is of very high quality for the price. I️ have no regrets.

Cast aluminum construction, so you will need a Dremel to cut the pieces of casting flash off of the ID of the Carb hat.Pretty good looking to compliment the rest of the chrome ducting I had fabbed up previously.Still a bit on the expensive side, considering the slop, the hat would slide around even on top of a carburetor mounting flange of 5 1/8.When bolted down, looks good and no shimmy.

THE DESCRIPTION SAYS ITS NOT FOR BOOST/ FORCED INDUCTION. BUT THAT IS EXACTLY WHAT I WILL BE USING IT FOR. TURBO CHARGER ON A I-6 ENGINE. SEEMS TO BE PLENTY WELL MADE FOR THAT.I HAVE MADE MY OWN PREVIOUSLY FROM WELDED SHEETMETAL BUT THIS SAVES ME A TON OF TIME.