Originally Posted by zman1969

I'm curious how well this clears your hood

Originally Posted by ASE doc

Hello Mr Speier. I am familiar with your work. In fact, I'm trying not to pee myself seeing your name on a reply to one of my threads. I am really quite stunned, even if your comment isn't especially flattering.

I guess you don't like the Eddy piece. As cast, I think it must have been intended to squeeze midrange torque from a mild small block with stock heads. The fact that Eddy Tech told me not to port it because "it's engineered to maximize velocity" illustrated for me the lack of any real knowledge on the part of the guy answering the Eddy Techline phone. Needless to say, I hung up on him.

Looking at what I'm doing with it, picturing it with a flow friendly rectangular plenum to compliment a 1000cfm dual TB, do you think that I have any chance of significantly improving it? Would you even take on something like this, using this casting? I chose it as a starting point because of the air gap design that will at least somewhat isolate the runners from the valley cover. I like the basic runner casting with its curved taper. With the interiors opened up as I have done, I'm hoping they work to support a 550hp small block. The casting limits them to a 1205 outlet. With welding, they could be brought out to 1206.

Aside from tossing it in the trash, any advice from the intake and cyl head porting master?

Originally Posted by ASE doc

Some of you may remember me threatening to get my hands on one of these new EFI tunnel ram intakes from Edelbrock. While I had some delays getting here, I did finally get my hands on one late in November.

As promised, I have cut the plenum top off and am in the process of working the runners and plenum over. The XT is already a pretty decent intake. If you were going to install it on un-ported heads you would be best to bolt it on as cast. This SBC version (p/n 7137) appears to support around 420-440 hp at about 6K rpm out of the box. For my purposes, installing it on ported Twisted Wedge G2 heads with a ZZX cam, it deserved a little attention to make the best of what is a very good design. EDIT: The 420-44hp range is from a 350cid with good aftermarket heads and matching cam. One installation on a 383 resulted in 460hp and 506ftlbs torque with an as cast p/n 7137.

I have heard concerns of the runners being too thin to allow porting to Felpro 1205(2.09 X 1.28). I myself had the same concern when I first looked the piece over. After opening up the plenum and going to work on a runner, I will state here for the record that these concerns are unfounded. There is plenty of material for at least the 1205 runner size. From my measurements, there is still a good 3/16" of wall at the thinnest point on the ported runner.

The as cast runners measure 1.99 X 1.49 at the entry. You can see in the photo the difference between the 1205 gasket and the runner exits.

The ported runner entry measures 2.10 x 1.60, an increase of about .100" both directions. This I've done to match the increase of the runner exit to the 1205 dimensions, maintaining the original taper between entry and exit. As you can see in the photo, I've stopped just a hair short of the full 1205. I may leave the exit there, aside from some detail work and finishing, as there is a minimal affect on flow from this small difference(about 1/16"). This way, I'm covered for alignment of the intake to the heads.

The large protrusion of the injector bung into the runner is another issue. I was going to install Bosch IIIs, which are 2.5" long and would have sat deep in the bungs, not allowing for much if any trimming. I decided instead to go with Edelbrock injectors that are 1.15" seat to seat and will sit against the top edge of the bung with only the o-ring and a very thin retainer sitting in the bung. This should allow for alot of trimming on the bungs. I'll have the injectors soon and then I'll finish the bungs.

For now, here are some progress photos.