F/B with manual valves and cylinders

i had 4 way valves from MIC in my 2 door 91 integra the 4 way valves are useless i dont liek them so im going to take 2 of them and put them in my new 91 4 door the question is if i tie the front and the back togother for a f/b will i have any trouble with body roll going aorund corners and all that? and once i did that the lines goin to the front 2 cylinders have to be the same length as well as the backs. i never measured them on the 4 way valves but i never had a problem seting the height so im not sure if the lines will make a difference with f/b.

im still unsure i just rearended a new volvo on the highway and i dont klnow if i should still pout the cylinders in the 4 dr how will it ride with f/b t'd off front to back???