If you can find a "reducer", you could use the Volant on the stock SPI t/b. Just like the Iceman kits do for the SPI. The problem would be finding the correct reducer, length and openings wise... The one the Iceman sells with thier SPI kit might work, but I can't say for sure.
What one could do is find an SPI owner with the SPI Iceman kit and a Zetec owner with the Volant and compare ;)
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