I am interested in NEV Cams and TTS Supercharger. I was wondering how to obtain those items in the USA. If the items aren't available in the USA, I will only be limited to K and N Filters, Tuneboy, and Jardine Exhaust. What kind of performance will I get with the latter?

Most all the items you are looking for are linked here...

Rocket III Performance Accessories

You pretty much have to order direct.

You can pm Nev through this site or email him direct at nlrace1@bigpond.com

With triple K&Ns, tuneboy and Jars and a dyno tune you can expect hp to be in the 150's.

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There is no replacement for displacement.

Richard's at TTS is

richard@tts-performance.co.uk