deca for 16 weeks?

[dariush]

for exp:
1-16:deca
1-18:test ena
1-5:d-bol
i'm 280 ib with 20% body fat

[Big]

i'm 280 ib with 20% body fat

please post pics so we can get an idea of the base you are working with.
cycling as you suggest with high bf% greatly increases the chances of gyno and estrogen related sides as well as blood pressure issues. you may not care about those issues, but it would be irresponsible for us to advocate it.
to specifically answer your question, sure you could do it. to honestly answer your question, you definitely should not.

[WARMachine]

^^^ Did you seriously ignore BIG's post?

please post pics so we can get an idea of the base you are working with.
cycling as you suggest with high bf% greatly increases the chances of gyno and estrogen related sides as well as blood pressure issues. you may not care about those issues, but it would be irresponsible for us to advocate it.
to specifically answer your question, sure you could do it. to honestly answer your question, you definitely should not.