In the midst of other RE Italian engine discussion, we forgot to mention the venerable SuperTigre X40 and X45 FIRE. These are the front intake version of the famous F1 X40 RIRE engines.

They are somewhat hard to find but not impossible. I have been able to source one of each over the last year. The Macs headers I picked unfortunately don't fit properly as the engine exhaust and header mount flange is very narrow and the screws interfere with the header pipe. A little work on the header should sort it out though.

David