The KG6 is too aggressive for the E head without bigger valves and headwork. The Type 3 manifold will push the power curve up so a more restrictive exhaust manifold will be better I think. I have a b20e exhaust manifold on one of my engines which I will use with a Simonz exhaust. I went and talked over the resto work with the guy locally this morning who does some very nice work and he is going to have a look at the car this week and start the resto in a couple of weeks, so I will do a bit more work on the head while the resto work is ongoing but nothing extreme. I have resist the urge to go overboard on this engine.
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