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Manifold for Weber 34 ADM to Red 202

G'day folks,
I've just bought a 34 ADM carb for my Red 202, which I am planning on mildly working (the common stuff like re-bore 40 thou, flat top pistons, HEI dizzy from Blue motor, mild cam and associated springs, lifters and bearings, etc...) my question is, is there a particular inlet manifold that is better than others for the Weber? Most people recommend a 350 Holley manifold like the Redline, but is there any that have better flow or other benefits that others don't have? Also are there any particular adapter plates and spacers that are recommended?
Cheers.

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I'd use a Speco Firestreak manifold if you can find one, longer runners and better distribution than the redline design. If you wanted a heated manifold for better drivability when cold you could use a 186s manifold, may need to make your own adapter plate for that.

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Like this one?
https://www.ebay.com...

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Someone's added extra vac ports and ground a bit off the bottom of that one by the looks of it, would still be ok. I'd probably go the 186S manifold if you were willing to put the extra work in to fit it.

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This seems to be what most people are saying. I found a thread on a Torana forum where someone put up a photo of a Lynx 186 manifold that was a similar reach to the Speco but had a nice smooth curve to it, saying that was the best of a bad bunch, but I can't find any information about it. So I guess I'll start looking at the 186S. Cheers mate.

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That Lynx 186 manifold is quite good but I don't think too many of them were made because I've never seen one in person.

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years ago the young fella that worked for me had a HG ute with a 186 board to 192 and a yella Terra head stage 3, he had a Weber (off a XD falcon i think), that was fitted to a 350 holly manifold with an adaptor plate that was bought from REPCO back in the day.
He ran a 5 speed
Hope this is of some help

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"just my 2cents worth"

"were going to need a bigger shed"
trippled75@yahoo.com.au
This will take You to" Old Holden sheds"
https://web.archive....

Thanks mate. I'll be running a 5 speed too in a couple of weeks.

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going to be modifying a 186S manifold in the next few days to fit a weber straight up. ill weld a bit of extra alloy as the webers are longer than a WW, then drill and tap - they are very very close width wise.

usually i run a redline or cain holley manifold and an adaptor but this HR i am doing an engine for deserves better ;)

i have always thought the redline's the worst of all the manifolds (just look at the cross section where the runners turn towards the head) and the cain the best but thats purely visual, no actual testing. the factory 186S manifold looks good, i have not used one before.

ill try and remember to take some pics of the process when i do it.

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Pics would be good thanks Ben, I'd be interested as it would aid me in doing this to a 202. Actually had the 34ADM and manifold for years but just haven't got around to fitting it up

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Bryan

This one is made for the ADM on a red six: http://www.aussiespe...
David

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Old is good.

Do you know if this is a straight fit? It says it's made for the Weber and Holley (I'm guessing the inner set of holes are for the Weber), but says the Weber requires extra grinding. Also, any idea how they perform?
Cheers.

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His number is at the bottom of the page, ask him.
I've bought a red six rocker cover spacer from him and it was good.
david

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Old is good.

Thanks mate! I'll give him a buzz.

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Does anyone know if the base size of a Weber 38 DGMS is the same as the 34ADM

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Bryan

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