Marshall, The 40 mm Flat Slides that came on the 493 motor that I recently got from Greg Olson have a much bigger airflow over 38 mm round slides and would be a big advantage. That is why you can't use them. Anybody want to buy them? Jim <BR><BR><BR>**************************************<BR> AOL now offers free email to everyone. Find out more about what's free from AOL at http://www.aol.com. ________________________________ FormulaCar Magazine - A Proud Supporter of Formula 500 The Official Publication of Junior Formula Car Racing Subscribe Today! www.formulacarmag.com or 519-624-2003 _________________________________
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