Skip to main content

I am seeking opinions on what Weber manifold (Inglese, Hall, etc) has the optimal performance chareteristics for a Pantera. I am aware of having to notch the deck lid (gonna get a repro lid for that), but do some have a superior linkage, vacuum port for brakes, better runner design, etc. And since I'm here, one last "how do they do that" question. My current carb configuration has the typical valve cover to air cleaner PCV setup. How is this done with webers? I assume plumbed into the manifold some where?

Thanks, Ron
Original Post

Replies sorted oldest to newest


Redline of Australia ( sells a Weber mainfold that incorporates a vacuum "box" cast into the manifold above the lifter valley. They leave it up to the end user to fabricate an aluminum plate to enclose the box on the bottom side of the manifold. A small hole is then drilled from the box to the backside of each runner, allowing each cylinder to contribute to the vacuum inside the box. You can run power brakes & the PCV valve from the box. A clever design. The manifold has 2V size ports but has enough material around the port to work with 4V heads as well. The mainfold uses adapters allowing it to mount either Weber 48 IDA or 48 IDF carbs.

Since Pantera owners usually opt for the "racier" 48 IDA carbs, you rarely read info about the 48 IDF models.The 48 IDF carb flows about 50 CFM less than the 48 IDA, but is a more streetable carburetor. The IDF carbs are shorter vertically & have off the shelf air filter assemblies available for them.

The 48 IDA carbs had gone out of production, but demand has been so high Weber chose to resume manufacturing them and importing them into the US. So they are available new again.

Dan Jones has much more data available regarding IR/Weber manifolds, including info regarding IR/Weber manifolds that a fellow Pantera owner is in the process of casting at this very time. Hopefully Dan will respond.

If you should decide to purchase the Redline manifold, I have an unused one, with linkage & 48 IDF adapters I'll sell you for a price you can't refuse, just to get it out of my garage. (48 IDA adapters are available from Redline)


Thanks for the link. I'm not a very big fan of brown on any car, but that Pantera looks awesome in that shade! It looks like a quality job.

A MagnaCharger setup has no sweeter perch than atop a Cleveland in a Pantera! They really make Panteras look exotic! If anybody has any info on a kit for sale, I'm all ears. Thanks again.

I am the guy who tooled the intake that George references in his reply. The intakes I tooled are for high port SVO (and like) heads. In the most material rich condition the top of my intake runner would likely be 1/2" above the top of the port on a 4V head. There's not enough material on the 4V head to accommodate this. If determined enough, I suppose you could fill the top of the runner in my intake and lower the floor (as much as possible), and then fill the floor of 4V head the rest of the way. But please, don't tell anyone I suggested it ;-). Or you could high port your 4V heads, but for all that work, why not buy a set of aluminum high ports? I looked at quite a few intakes before I started to tool the one(s) pictured below in as cast but before machined condition (if I posted it right). The most common 4V IDA intake by far is the intake originally tooled by Hall. It's a good piece. Fairly pricey these days. North of $650 I believe. Occasionally less on ebay from time to time. If you have 4V heads and are looking for a bolt on, there's no doubt. It's a candidate. $850-$1100 from Inglese.

As for vacuum, depends on cam of course. Tying the runners together helps collect it but a vacuum reservoir sounds better if you can get there that way. I just plan on an electric motor driven vacuum pump up front. They're pretty in expensive, and I prefer not to compromise performance for convenience.

I wasn't aware of the Redline product. Thanks for the post. I'd look forward to seeing one of those. In addition to the Hall lid, there were a number made in the past (moon and others, many were multipiece Boss 302 derivatives), but not much other than this in the way of current production. The Hall unit requires a lot of work to be used on high port head, and or a Windsor style or after market block. So.... I decided the world needed another IDA intake.

My lid will be available for 9.2" or 9.5" deck height, with or without thermostat, C3 series SVO port size and position (although A3 will also be available), and is cast with the Windsor style valley rail although the land for the Cleveland rail is also cast in so it can be easily trimmed for a Cleveland block 9.2" form. I also cast in injector bosses that will accommodate modern injector sizes. If you use the low profile 50mm TWM throttle plates, short stacks, and filters ala Dennis Quella's set up it will fit under the engine screen and deck lid of a Pantera. It will also of course accommodate the taller throttle bodies and/or 48 IDAs (they are manufacturing them again you know) for those that are OK with notching your deck lid and enjoy the security that a rear view mirror full of stacks provides. Most of the guys I know with'em aren't too concerned about what's behind them anyway. This thing was conceived with under the influence of Budweiser and built by the light of NASCAR on TV. They're not quite ready for prime time yet but will be soon. I will post when I'm open for business. -Kelly


Images (1)
  • dc0049m
Last edited by panterror
Link copied to your clipboard.