Quote:
Originally Posted by sendler
It might be possible to just move the torque peak lower in rpm by changing cam timing by one tooth instead of going for a full Atkinson esque late closing with the requisite back flow out the inlet valve which tends to disturb the carburation.
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Actually the testing was done with a single tooth changed and it already disturbed the carb (not beyond help though)
Loose valve lash has the result of a little less overlap and shorter duration : sounds a better way to boost torque