Round Top SUs | The Z Club of Great Britain
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Round Top SUs

Discussion in 'Tuning & upgrades' started by Farmer42, Apr 2, 2017.

  1. Farmer42

    Z Club Member


    This may sound like a daft question and apologies if it has been covered before (couldn't find anything on this) but can anyone tell me where the connection for the vacuum advance pipe is on the HJG46W carbs please?

    I have the 3-screw round tops from a 240Z but I cant find a connection anywhere.

  2. Jimbo

    Jimbo 1978 260z in yellow

    should be on the front carb at the back of the round top very close to the manifold mounting.
  3. toopy

    Z Club Member

    I thought it was on the inlet manifold not the actual carbs
  4. Jimbo

    Jimbo 1978 260z in yellow

  5. toopy

    Z Club Member

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