Hi

I'm thinking of booking a BA itinerary that takes me from FCO to IAH with a transfer in LHR (BA 553 -> BA 197). The transfer is only 1 hour and 5 minutes. Is that enough time? Is there going to be any customs or security checks? Both BA.com and travelocity.com allow me to book it, but it seems really tight.

I don't have any status on BA or OneWorld so that won't help me line hop anywhere.

Thanks for any advice or insight.