boysene or vforce

[fao]

boysene rad valve or vforce delta 3 reed vavle

and what is the difference of the delta 3 and the v-force delta 3 moto tassini ( they have like steel wings over the petal here is a picture of what i'm trying to describe lol.)
is it to hold the petal.if yes why other delta 3 dont have it

 

[fao]

and i have a little project for my 06 rm125

i got a pc works pipes and r304 silencer
i'll put a maxpower-engine big bore kit 151 and port&polish
i 'll put powernow and powernowplus and reed valve
and i want to run on u4.2 or mrx01 which one is the best?

i need suggestion

and what about a I-cat ?does some one try it?does it make a difference?
does reed valve spacer make a difference becaus on sled it make a difference