Quote:
Originally Posted by rick55
Although they Are called overflow tubes they do also provide lubrication for the distributor gear and the timing gears and chain.
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The oil from the rockers still drains back into the valley to lube the distributor gear and the timing gears and chain. Nothing changes in that respect.
With the addition of Tim's mod the front block the timing chain gets more than enough lubrication.
The shaft should also be grooved ( It's groovy, man) for better oil dispersion and the farthest right shaft stand (the one that used to have the overflow tube) be modified to vent any vapor.
I'm running Dove rockers and I feel that the pressurized system is the way to go (for me) to ensure an oil "cushion" between the aluminum rocker and the steel shaft.
Not trying to change anyones mind, just saying what I feel is best for my engine.
Notice in this picture I do have the O/F tube installed though it was pinched way down.