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Valves #293058 09/16/2008 11:47 PM
Joined: Jan 2005 Posts: 146 Greenwich, New York tom OP Adjunct
OP tom Adjunct Joined: Jan 2005 Posts: 146 Greenwich, New York	I plan on doing the 904 BB this winter with port & polish on the heads. Was wondering if it makes a difference to go up one mm on the valves if I'm not changing the carbs?

Re: Valves tom #293059 09/17/2008 1:26 AM
Joined: Aug 2007 Posts: 10,730 Likes: 6 St Louis MO roadworthy Should be Riding
roadworthy Should be Riding Joined: Aug 2007 Posts: 10,730 Likes: 6 St Louis MO	I upgraded to the +1mm valves for a future purchase of carbs, I will be satisfied with my current results when I get the dip out of the mid-range Always remember to be yourself. Unless you suck. Then pretend to be someone else.

Re: Valves roadworthy #293060 09/17/2008 9:26 AM
Joined: Jan 2005 Posts: 6,308 Likes: 4 Honeoye, New York Dinqua Worn Saddle
Dinqua Worn Saddle Joined: Jan 2005 Posts: 6,308 Likes: 4 Honeoye, New York	Try a(nother) shim under the carb needles for the mid range dip. Or even the TBS needles. A word to the wise is not necessary. It is the stupid ones who need the advice. Pat

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by roadworthy - 04/24/2025 7:57 PM

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