2 pfsense carp/pfsync and 2 bgp peers

[gullio]

hi everyone,

attached you will find my architecture for a new datacenter that include 2 pfsense as firewall in ha with carp and pfsync.

i have multiple question:

1. at the moment i have a dual core processor with 4gb ram. it is sufficient to manage rules for about 300Mbps to go to bgp peers?
2. how i can achieve the full load balancing with 2 bgp peers? ospf? or gateway pool? or both?
3. in this scenario it bossible to achieve load balancing and failover with stateful inspection? or bgp protocol don't permit this due to asymmetric traffic?

thanks a lot for any reply
BR