The 292 aluminum ones have an extra, threaded 3/4''npt hole in the top if you wish to run water to say your new intake manifold. I don't believe the 250 alum ones do, but you could add one if desired. There are a couple ways to run water to the intake jacket if needed.
Jim & Caroline
The highway is for gamblers, better use your good sense."
Gooday-that's my 1¢ answer due to the lousy economy ~ cause I ain't got - no . mo . doe
Every Shaver | Now Can Snore | Six More Minutes | Than Before ... | Half A Pound for Half a Dollar | Spread On Thin | Above the Collar || BURMA-SHAVE
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