What should the exhaust gas temperature should be with 420 main jets at idle - 3" from manifold, both outside cylinders are at 66 celcius - center cylinder exhaust is at 135 celcius....what could be the problem ????
There is an exact distance from the piston skirt.(3.937")100mm. Book says 635c is normal and preignition at 676c. Talk to Jaws and see what they recomend for jetting?
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