hashim bro go to commercial market, Al Mairaj CNG conversion centre
There is a guy named faraz and fitter is humayun
Go for oyrssa kit with Zetronic emulator and advancer. No wiring cut will be done if u install zetronic with Oyrssa.
Rest is up to you. they do all type of fitting.
When and from where have u bought your spectra
Is it british green?