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Caught up with Steve this week. With standard alum pushrods, he recommends to halve the gap if using his alloy barrels i.e. 3" inlet and 4" outlet.


With his chrome moly steel pushrods, gaps should be set at 0".


I'm going to install a Combat head with his Stage 2 3mm oversize inlet valves, standard pushrods, standard cam and 80" copper gasket using the 3" inlet and 4" outlet gaps.


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