Truncate RSS Feed Manager posts?

[lingstar]

Hello,

I have set my RSS feed manager to publish snippets of my blog. Thing is, it publishes the entire content of the blog post and not the first 150 characters or so.

Is there a way I can set in the RSS Feed manager a parameter to truncate the post to the first 150 characters? I'd like to do it in the RSS feed manager instead of in my blog in case other users want their content posted as well.

Thanks!

Barbara