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[skippy49]

Yeah, the Zippers 575 and the S&S 570 are pretty close on the specs, but the 570 is available now and I can put it in now.   I don't think I'll have time to do it later, so that means putting it off until next winter.  Think I"ll have the shop check my springs before I decide on them.

[HUBBARD]

Hubbard:
 

[syclone]

Thats why I mentioned the S&S Skippy ....I even like the the slightly lower lift on the 570 (ramps not as steep) and I like the earlier exhaust open at 55 degrees...heads dont have great port velocity so they can use the help .

[Unbalanced]

This is with the CNC HEADWORK from Zippers,

Total compression ratio is 10.0 to 1 using SE high compression pistons which require              no second op work.
 

[skippy49]

Sounds like the stock springs are what I need.  What's everyone's opinion on replacing them with new ones?  My bike has 23,000 on it and I don't intend to open it back up unless I have to, so should I go ahead and buy new springs?  If I do, do I need new collars and everything or just the springs?  The reason I ask is that the individual springs are fairly inexpensive compared to the whole kit of new springs.  I think the individual springs - inner and outer-are around $6 each. Haven't priced the complete set but I assume they would be $75 to $100 or more.

[HUBBARD]

Sounds like the stock springs are what I need.

[skippy49]

I don't want to open it up again if I don't have to, and I am changing cams, so I'll see if I can get the whole spring package at the dealer.

[skippy49]

On the other hand, I may wait until the shop checks mine to see where I stand.