It's a bolt on, and what many of us with 1500 Spitfires have been running for
years now as a hop up. The manifold passages in the head are the same size, so
there is no opening up of the manifold runners needed when mounting onto a 1500.
Daniel1312@aol.com wrote:
> Hi list,
>
> Does the 1300 Triumph Spitfire twin HS2 carb manifold bolt right up to the
> 1500 Midget head? If so, is it also possible to open up this 1300 manifold
> to match the port sizes (I'm assuming the 1500 port sizes are bigger) of the
> 1500 head?
>
> Daniel1312
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