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kelvinnoel

Which Head

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I have bought a newman high torque cam to install over the winter my question is fit the standard head or an injection one I,m running a weber carb ,and both heads have been polished up and the valves reseated I,m not too bothered about top end speed but the grunt to power out of corners and maybe drift it a little ,yhanx in advance gent,s

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The injection head is better than the standard head so I am told

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Injection head will definitely be unleaded, use that one.

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The injection head was mostly unleaded but check head for stamped letter in side of head near rear exhaust port

 

The inlets are slightly higher giving a better port angle but the main difference is that the port near the valve has a smooth shortside turn into the valve seat whereas the non-injection Head has a very sharp edge

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