Have you thought about "DRY SUMP" . If you have a talk to some of those marine motor outfits up at Coomera / Yatala or that ski boat fella on Nerang Rd at Ashmore there, They could sort out a dry setup. I did it years back in my V8 Ford ute. I ended up with a larger capacity (12ltr) better cooling and filtering system and it was all electric. Less load on the motor= more power and rpm. They may even be able to help with ingition bits? Just a Thought Also for a std Hi Vol Hi Press setup check out Phills Rotarys and Fast Fours in Bris. He does stock Datsun performance bits. I think he is on Bris North.