Heating Help

i just finished my boas 6x3x2.
it has a 135 RHP from pro products in it
and the air temps are great
there 79 on the cool side
81 in the middle
and around 84 on the hott end

the problem is that the area under the heat panel which i thought was gona be the basking area is only reaching about 85-87 degreas.

i always have a basking spot around 90 for my snakes
but i dont think ill be able to reach that with out redoing the cage

Do you have any pictures of the cage? I'm looking to build one myself, i have a general idea what i'm going to do, just like to see what other's have done though.

Put a small "riser" on the one side section inside the tank up a bit closer to the RHP?