The trick to getting clearance under the left-side (KG) decklid spring is to get some early Kadron air-cleaner bases, short filter elements and short intake manifolds.
The later bases stand a bit higher than these. These elements are 3 1/4" K&N items.
Here is a later base.
Here are some close-ups of the manifolds and filter elements.
Here is a sample of three different Kadron manifolds. Right to left, an old steel manifold, the aluminum (Bugpack I think) manifold and an original Puma manifold.
And finally, here is the shaft bushing A.J. Simms installs (on the left). The red (?) part turns with the shaft.
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