Hey guys, Just got these in. SK Speed is one of the first dealers in the country to get these and I posted some actual pictures below.

$235 Shipped in the US for LS1 Tech Customers.

http://www.holley.com/300-130.asp

 

Man I want one of these, but I dont think its right for my cam. I peak too high, my power doesnt start to drop till after 7000 rpm.

 

Are you running a cathedral port head on your build? If so, I think your right. With the rec heads, I think you are on the bubble. I rev very clean to 7K with my small cam/dual plane setup, with great low RPM drive ability . I don't think the dual will hurt your top end charge at all with a small cube, LS3 head combo, but it will extend the power DOWN in the RPM range, IMO.

 

Ive got ls3 heads. Think this intake will carry to 7200?

 

Yea ,I think the LS3 intake will, with your 6.0. It should have more than sufficient flow to match the needs of your engine to 7200rpms. The intake MikeSKspeed has is the cathedral port intake , though.LOL

 

Oh wtf. I looked at the pics and it looked square to me so I assumed...

 

I was thinking the same thing. They don't look like the classic cathedral port to me either. I wonder whats up with that?

 

I think they found some flow testing that proved capping off the top helped on carb applications, like the old racers trick back in the 70's of running an oval port BBC intake on Rectangle Port heads.

I have the 300-129 LS3 version of this as well, same price.

Thanks, Mike

 

I think the old BBC trick was because the guys had a oval port intake and rec port heads. The idea is that it should work OK because most of the flow at WOT is concentrated towards the center of the runner.
You should shout to the roof tops that you have the LS3 headed intake. I think that's the intake more people have been waiting for because they don't what to pay GM prices for a dual plane intake.

 

The runners on my single plane intake, a man's intake by the way, are the same shape. They are squared off on the top and don't match the steeple part of the intake runner cathedral.

 

I thought it was the other way around with the BB chevy intake ? IE people ran the square port intake on the oval heads ? This was due to the better (higher rise ?) intakes being available in the Rect port. Supposedly works well. better than you might thing with the port mismatch.

 

How does this compare to the edelbrock?
I've been looking for a dual plane for my 243's-
Who has run one and whats the consensus?
How does the Gm dual plane compare to the edelbrock or this new Holley??

 

Fixed

I might try one of these sometime to see if they are any different than the edelbrock.

 

Im waiting on feedback. Between the LS3 and Cathedral intakes, we have sold about 10 so far of this dual plane design, waiting to hear word from some customers.

 

Any feedback on these compared to other dual planes available? I am thinking about switching my single plane to one of these.

Thanks

 

Any idea where the Holley is made? Not listed that I could tell on the Holley webpage or PDF install sheet.

 

China

 

lol!!!

 

how about the 300-132 I dont see it on the site. and what price? thanks

 

PM mike at S-K speed with whatever your parts list is. He usually beats all the competitors in pricing.


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