It is very nice of these guys to try to answer your question but the fact is no one knows what will happen if you add 250mg of test to your 400mg of eq. Simply because no one here is you and you didn't give anyone enough information to have a chance at being even in the ballpark of an accurate answer.
A better question would be "what if I added another 1000 calories a day to this cycle AND added test?" While giving more background. (See Juice Authority)
Surely if all things are equal you'll gain more with the test added and although flexed1 has done well with eq alone, as he said, it's not adviceable if your looking for size. I assume you are since you asked how much your gains will increase.
Simply put, there is no accurate answer to that question as it stands.
A better question would be "what if I added another 1000 calories a day to this cycle AND added test?" While giving more background. (See Juice Authority)
Surely if all things are equal you'll gain more with the test added and although flexed1 has done well with eq alone, as he said, it's not adviceable if your looking for size. I assume you are since you asked how much your gains will increase.
Simply put, there is no accurate answer to that question as it stands.