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DJVCUDA said

i tried from 28 degrees to 34 and it liked 30 the best, for this setup.

the cam is a comp solid roller - XR280R

570 lift intake 576 lift exh
dur @ 50 is 242 / 248

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Ill bet the low timing mark was best in this engine because the compression is to high for this cam. You may have been getting into some light detonation. 242 duration and 11 to 1 compression is not a good combo for pump gas.