Test, Deca, Dbol is about the best mass cycle I've encountered. I like a 2-1 dose of test to deca, and the first 4-5 weeks using Dbol. This cycle gives me huge mass gains that seem to very manageable afterward. The Dbol in the beggining blows you up quickly, while the remaining time of the cycle allows you to fill it in an gain a bit more mass/hardness. 12 weeks is a good duration for this cycle.
For all out mass I've yet to find a combo that surpasses good old test and deca, as far as injectables go. While the Dbol helps to really kickstart your growth to the next level fast.
Sounds like you are only using 350mg/wk prop right now. Is this as high as you've gone, what did your previous cycles look like? That is a very low dose, so you should respond well to even a low combo of the above cycle.
Something like 400-500mg test/wk and 300-400mg Deca, with the first 4-5 weeks using 15-30mg Dbol ED. You'll get amazing mass gains, but you'll be more bloated than you've ever been. All three hormones cause bloat to some level, with dbol being the worst by far. Running an Aromatase inhibitor (AI) will help with this considerably, as well as aromatization leading to estrogic sides (which are high with DBOL). That's why you should start with low dose, especially if you have never used it before. I notice that with lower doses, the aromatization is much less. Even further, if you space out the doses as much as possible that too helps with less aromatization. Your body never recieves a flood of androgens, so it has less need to convert them in order to balance hormone levels. A good rule is to never take more than 10mg per dose. This also helps spread the doses out, which helps alot because the half life of Dbol is so short. 5mg with every meal would be a good way to dose.