Ford 272 C.I. runs low 11's. Why do Mopar guys need 408's?

I understand but the weather/track conditions are experienced by all the racers so it's really how much do you trust your vehicle?. Every "slow" car I have owned/bracket raced I made a full pass out the back door and it was rare that I ever broke out/lost on a "decent" pass. Out of all the times I had to chase a car down it was 50/50 most of the time if they made a decent pass and I was making a better one. Less room for error when things happen faster.
All i can say to that is in my opinion, you tried to bracket race in a car that you couldn't manage.