No extra stroke just increase in bore size.
Skunk pro2 cams
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Pro2 take a very long time to degree and you have to be SPOT ON with them and the fact you have a 1mm oversize exhaust valve when Skunk2 tell you DO NOT USE OVERSIZE VALVES with these cams.
I did check that cams had been degreed and figures look right ( though I could of stuffed up checkng) and the reason for no oversized valves is piston to valve clearance and I must have enough clearance ... may be the brand of piston ..wiesco ... No clearance issue.
If you have valve to valve clearence the cams are degreed incorrectly, piston to valve is not really a problem with the PRO2 cams,the dart block you used the STD deck one or is it the raised deck block
Found these specs which is a guide for cr and psi compression test. So I would think
For the size of my cams my cr is correct and my thoughts of cams being dregeed incorrectly may be wrong..
CR Std Fast
Road Rally Race
7 123 117 111 105
8 146 139 132 124
9 171 162 153 145
10 196 186 176 166
11 221 210 199 188
12 248 235 223 211
13 271 261 248 234
Are the exhaust ports also heavily ported to go with the oversized ex valve?
But the cyl head guys think they need to flow as much or more than the intake its supercharged,how many times have we talked about this even posted up telling people to be very careful who does there cyl heads for them make sure they know how a Vtec Honda engine works.
How much vacuum does this engine have at idle ?