Thanks Roelof,

amainhobbies is giving away PSRB set for only 169 bucks! this is a great deal I guess, even looks wrong list price because only PSR for same engine is 379 !?!

The initial idea was not to modify the engine with more ports but when I see this price compared to the kangaroo's PS out there (better fit) or even original classico 10 PS (which I can't find anywhere) I think this would be the best mod for the money.

This weekend I will borrow a RB C10 PS from a bud in the track and check the fit.

I let you know the result.