Originally posted by Sow&Steady
AFM, thanks for the info. Seems that we now have to race these IFMAR/EFRA specs for our National races which is why I've been hunting for new engines.
5-port outlaws, thankfully, can still be used for club races. Still, anyone wants a new 5-port OS 12 TR or 5-port NovaMax can pm me. 
Well be sure which rules, because IFMAR and EFRA are different. If you are sure it's EFRA rules you are playing with, you won't find these engines in the USA, you must search in Europe.
USA goes by ROAR rules which are similar to IFMAR.
If you wan't a Sirio or Collari EFRA, I bought mine in Spain at Modelcar (no web site) you can call Carlos Ducay at
(34) 627-416131, he'll gladly help you. Don't forget to use Sirio's own pipe, it's the best for these engines.
AFM