You ready for this. Before throwing number at this let back up for the ones thats are asking why. I will try to keep short and break up in sections.
As stated in other post the pilot is a stroked 350 with a few other changes. Most of now that the pilot in stock trim has better power managment and reliablity.
Why should we stroke a motor and what can be gained. Knowing every one uses a diff application of power for different ridding ares and type of ridding we should first discuss this. A dunner should tune and build diff than a woods or racer. Dunner first, what type of dunning hillclimber trail runner or drag racer. A bore /stoke can be applied in theroy for each and be effective yet may suffer in other. I call this action reaction.
I proposese this. Since the 350 has too big of bore for its strok any way why not leave stroke alone decrease displacment and rev faster with a higher bemp and increas effective BHP and reliabilty.
Thoughts on idea. What would suffer from this. I like to consider reaction working toward effecinty. BHP is a plan which is the formula for brake horse power and can easy define the output. Plan is based on PSI,STROKE,AREA and RPM. change one and it has an effect on output.
I discussed a decreas in AREA and increase in RPMand PSI changing three things effecting BHP.
First; negitive effect on changing AREA. less port opening area,weaker carb single and less torgue.
I will slow up here and give an example. If I was a hill climber bad news,If I was a racer ok but not good, long distance trail runnung at speed OH YA.There is a lot other items that would bare on this but just leave them alone.
Second: advantage of RPM, developing a higher BHP at speed,and and higher g- max ( touch on it later ring thickness at speed)as well a higher top spped using a CVT transmission.
Ok got to go eat I'll finsh later. Look this over and ask questions if you not following me. It's important to get it now or you will really be lost later.