Guys, thanks a lot for all of your inputs. Let me answer the questions and they are good one.
Flymyplane; my 8U is not even 12 months old, I always use 4-40 stuff, all the servos are brand new, the end of antenna wire stick out from the fuse about 1.5", however you suggestions has some weight. At first I started the plane around close chain fence area, where I was getting the max interference, then afterwards I moved it away from that area and things got little better. Many club members had run into same problem around the fence, thanks.
Chris540; ign and rec are 18" apart, thanks.
Geistware; you are the man, Don from Don's hobby in KS suggested the same thing to me and as soon as I moved the battery packs more then 12" away from each other, no interference. However, I did not see any ground wire with ZDZ engine?? Correct me if there should be one.
Thanks again guys
The only problem (hopefully) I had to resolve is that viberation in the left aileron and left wing. I will try another new 605 there to see if that vibration goes off or reduces. Secondly, I had to use packaging tape on the alum tube to make it tight fit in the wings and fuse. What I did though, I used tape at the ends and in the middle section where the tube touches the fuse. Someone suggested to me that I should tape the whole tube to have a consistent thickness, may be that might be the cause of vibration or works to reduce it.
Suggestions are needed again.
Jamal