There is about 11ty million threads on this topic mate, use the search function and you will get all the info you could possibly need.
1000's will be fine or 1300's etc
They are top feed and 3/4 height if you are running standard manifold etc...
FYI i have run SARD 550's, XSPURT 1000's and XSPURT 2000's and all have been easy to fit and work well.