I'm planning on getting a 454HO crate motor for my 70 in about 2 weeks. It already comes with a dual plane aluminum intake, so I ruled out the cost of having to buy an intake manifold. But are these intakes GM puts on any good? Whats funny is that the intake thats on the motor retails from GM for over $300. Heres the specs on it:

http://www.gmpartsdirect.com/performance_parts/store/catalog/Product.jhtmlPRODID=613&CATID=611.html

Oh, and will this intake work with an Edelbrock carb?

this is an awesome intake. chevrolet did a ton of r&d on these and the design has been around since the late 60's. if you have a street car i would not change it out. probably the best single upgrade would be a set of small tube headers and free flowing exhaust. good luck mike

The Edelbrock will work on that manifold. Not sure how good the manifold is.

A manifold about like it but with the divider machined down some stock, (and per Chevy Power Book), was used on the L-88 so I will say it is a good one from the factory for rect. port heads..

But as also stated the aftermarket dual plane intakes tend to be better but just how much better from this one is open for debate in my book...

It's like the SB debate centered around the Z-28 intake, the Holley 300-36 and the E-brock RPM!!!

pdq67

PS., I have seen the bronze inserted one like this for the Marine applications go really worth the money at a couple of swap meets..

I did a quick search a few min ago, and people are selling used intakes with this model number for around $250. I think I'll keep it on there! Thanks for all the input.

I have a 30+ year old version of that manifold on my ProCharged 468 (in sig). I've always thought that intake flowed real evenly to all the cylinders, all I did was to open up the ports to match the Canfield heads on the engine and run a 1" spacer under the carb - it made power everywhere!

Thomas