I have Nitro Planes and Heli .. Electric helis

But my 1st Electric Plane ,,, i have a Park 480 as Recommended .. with a 3S 2100 pack what times should i get and can i use a 3s 3000 or 4000 will it be to heavy for the plane

all i have to base times on packs are what i run in my T-Rex 450 and 500 Helis

I haven't got the E-Flight Extra but as nobody else has replied thought I'd at least try and help. I've 2 other similar planes I fly on 2170's, both are about the 34oz level so 5 / 6 oz's heavier tah teh E-Flight and both using slightly more powerful engines so probably drawing a bit more. I get easily 10 minutes and could probably stretch it to 12 but I'd rather land with a bit left in the pack than crash / deadstick 500 feet away and it's pot pluck to see how you're comning down.
My batteries are quite oldish now as well and could probably do with being changed, as a guestimate I'd say you'll get 12 / 14 mins out of a new pack with throttle management and maybe a bit more.
Personally I wouldn't go to the larger ones as it may fly like a pig and will increase the wing loading although if you're only going to fly sport and not 3D then you may get away with the 3000's but I wouldn't buy 4 straight off but at least try it 1st, bear in mind their recommended is in the 1320 - 2100 so you're already at the top of their range !!!!!!
Hope that's of some help.

thanks that did help I have 6 2100 packs with some cycles on them from my T-Rex 450 so the heli and plabe will share packs but i do have the 1 3S3000 pack like you said i will try it after i get it flying on the 2100 packs the weight is only 1 oz more so it should give me long sport flights like i want the 4000 adds 2.5 ozs

The other thing I meant to mention I have a largish 45" wingspan EPP shockie that I have a 450 E-flight motor I fly with 1320's and get 11/12 mins but the weight is 200 / 300 grams less

i have the 260 and i fly with the 2070 extrem powers and get a 10 min flight but i dont know how good your batteries are the regular 20c 2100's get about 8-9 min but this is flying as hard as i can the whole flight i love how light the planes is so i wouldtn mess with it but thats just me