http://www.zippersperformance.com/catalogue/listproducts.asp?cat=852

BIG BORE NUMBERS ARE IN DYNO THREAD, FOR THEIR APPLICATIONS. :plause:

Yeah! I'm thinking on doing the whole thing with the "street" cam setup, the heads, the TB, the clutch, and the BB but not until I sell the other bike I have and get me another to play with for the months this will take.

SMart i am out a bike all season so far this year and our season is half over!! I sent for the Zippers catalog and am comparing their set up to Chopper Steves.
I am interested in the stage three set up without the higher compression pistons so that I can still at least run pump gas while I still have gas( the mileage I assume will drop significantly worse than it already is)
The big difference between the two kits is the cam shafts.
Zippers cam choices and specs:

CAM MODEL INTAKE EXHAUST TIMING @ .053" TDC LIFT @ VALVE VALVE SPRINGS
VALVE LIFT =440/410 Street

DURATION =248 244 .
________________________________________________
500/460 Race Cam

260 258 = Duration
.500 .460 =Valve Lift

Now Choper Steves:

CAMS .450 LIFT

That is all I can find on the cam, It is between the zippers two options,

So this is what you have up your "sleeve" there on your challenge....

ChopperSteve's mega-cycle cams: INTAKE: 450 LIFT 259 DURATION. EXHAUST 415 LIFT 246 DURATION

just so you know STOCK CAM SPECS: INTAKE: 430 lift 248 duration EXHAUST:393 lift 234 duration

Here's Web Cam's Numbers For Zippers Race Heads,
A Cam For The Street. .492 Intake 256 Duration
.452 Exhaust 254 Duration @.050 Lift 105 And 110
Lobe Center For Those Who Degree Cams. Makes
Use Of The .500 Lift Race Heads,but Streetable.
MEGA CYCLE'S CAMS MADE VERY SMALL INCREASE
AT THE TOP, ON A STOCK MOTOR, AT LEAST FOR ME.