any 225 performance ideas

Wrencher said

Agreed. The slant will let you down in the power made vs the money and time put in. The argument can be made tht is the most economical and toughest motor ever put on this earth, but performance is something that cannot be done with the word cheap next to it.

Buy a 360 w/tranny with 1/3 your budget, and then spend for a cam, intake/ carb and a tune, you'll be much happier in the long run

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You're right, Wrencher, that modfying a slant 6 for performance is both costly and challenging but it offers its own rewards ; a numbers-correct vehicle !

I live in France and got most of the engine parts from Australia (the AUD is strong, add shipping and duty to the base costs). In America V8-s are the default performance option (no quarrels, the same is true for the Harley V2 - quintissentially American) and the Aussies advertise slant-6 performance options on the internet better.

It is also expensive. I spent about € 10,000 (including shipping and duty) on the engine mods alone, and have a short list of (rather pricey) upgrades for the future.