My gut reaction is to fold,
but...
plugging in some ranges into Equilab gives the following:
(Assuming the following percentage hands of:
UTG: 15% range
UTG +1 7% range
Button 15% range
BB 12% range)
gives:
http://www.pokerstrategy.com
Board: Jd5h4s
Equity Win Tie
UTG 13.07% 11.68% 1.39% { 77+, A7s+, K9s+, Q9s+, JTs, ATo+, KTo+, QJo }
UTG+1 19.12% 18.09% 1.03% { 88+, ATs+, KTs+, AQo+ }
CO 39.57% 35.75% 3.81% { AJo }
BU 13.30% 11.86% 1.44% { 77+, A7s+, K9s+, QTs+, JTs, ATo+, KTo+, QJo }
BB 14.94% 13.28% 1.66% { 77+, A9s+, KTs+, QTs+, JTs, ATo+, KJo+ }
after a 100 million game monte carlo. Getting 40% equity with a 6 : 1 call seems like a no brainer. What did I miss?