Stock stroke vs 3mm

DrywallDoc

Member
Sep 29, 2015
179
12
59
31
32:1 premix
Wiseco Piston stock bore
28mm keihin pb carb
Lrd exhaust
Rechambered head
Ported
Stock reedcage
Open airfilter box

These are the current mods I am planning on my current build. Funds are limited so I would like to know, how much more power would I get if I had a vitos+3mm crank installed and porting matched?

Second question: if I install a 3mm crank after having it ported will this ruin my gains?

I want a 3mm crank but don't want to spend all that extra money if the gains aren't worth it. My plan was to install the Vito's crank myself and purchase a ported topend kit from kenoconnorracing and installing it myself. Will I get more gains from a stock crank and ported kit from Ken or +3 crank and ported kit not matched.