[Tapani]

Yeah, you do not need more fuel if you can not get more air first - this is the key issue. The EG33 is a fine engine as it is from the factory, look at a same period 964 Porsche engine for example - 3,6 litres, 250 hp and 310 Nm of torque.

If you are not able or willing to do it all yourself then be even more careful. At least choose a system which has local support with experience from various applications - you may not find a shop familiar with the SVX, though, but I do not think this is a deal breaker. Most modern systems should be able to be used with the SVX.

But first, make a long term plan - what you really want - and what is street legal in Norway. Also, make rough budget for the whole project and commit to that.

Tapani

PS I did not realize you had a manual conversion. If the 5 speed holds up ok and your satisfied with the gear ratios there's little sense in going 6-speed. Close gear ratios are needed more if you have a narrow and high power band - which you don't. Enjoy the flexibility and strong midrange of the EG33 ! And, btw, the 6-speed weighs as much as the slush box - see photo.