% of FTP for double century

Bomber

I'm thinking about doing a 320 km bike race in about a months time....  Any thoughts on what % of my FTP I should aim for to have the optimal (fastest) race?

Coach Rich

68-71% is generally a do no harm, go all day effort that will become difficult with time in the saddle vs the effort itself.

Scott Alexander

I was about to ask something similar, as I'm doing a Saturday 109miler then a 104miler the next day, Tulsa Tough.