I was looking at the sig Avistar engines [link=http://www.sigmfg.com/cgi-bin/dpsmart.exe/MainMenuFV4.html?E+Sig]avistar[/link] I am looking for an affordable engine for a Sig Kougar tha I picked up, I was looking at the Avistar or a magnum, or Super Tiger. I would love an OS but I don't think that will happen.

Any recomendation for engine brand and size?

Thanks

Jon