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John ED Renstrom
10-07-2015, 09:27 PM
I know, but wondering if anyone else can catch it. it's my guess that only the 67 and 68 used the thin Stainless steel plate.
which reminds me I do have a 68 intake that if anyone else needs I have 50 bucks into. 68 was a single year for the intake because of the devoiced choke.

John ED Renstrom
10-08-2015, 11:02 PM
in this case the steel plate needs to be sandwiched between two gaskets. they had the carburetor bolted on the plate and it was sucking air. which would cause the power valve to stay open to keep it rich enough to run.

Paul Steinberg
10-08-2015, 11:41 PM
There should be a phenolic spacer under the carburetor also.

PS... They cost big bucks!!!!

Peter Grave
10-09-2015, 09:47 AM
Yes and when old they are like us they become very brittle. HANDLE WITH CARE or you will indeed find out what they cost.

John ED Renstrom
10-09-2015, 10:51 AM
I have a couple of them on the wall. the gasket they place agents the manifold says top. we are still waiting for that shop manual to show up. hopefully that will clear up things. buy you could see track on either side in the plate were it was sucking air.

John ED Renstrom
10-10-2015, 10:59 AM
there is a reason you don't jump to conclusions on a car your not familiar with. your usually wrong. I was going with the information given me by a old mechanic when he redid the 68. with this set up I'm guessing you need a new plate every time. but got the shop manual in the mail yesterday this is what it says.

Peter Grave
10-10-2015, 01:40 PM
Take note they don't want you to TIGHTEN! up the carb bolts low torque pounds. Must be so you don't risk cracking plastic insert.

John ED Renstrom
10-10-2015, 09:49 PM
the clam is if you over tighten it will interfere with smooth operation of the choke

Peter Grave
10-10-2015, 10:20 PM
OK makes sense