Thank you very much for all the comments.
Ken, I first tried masking the flame sections with friskit film & when I removed this mask, all the adhesive staid in the model! I ruined the paint job removing the adhesive . For paint job 2, I used Bare metal Foil again. The design was cut out on the sheet & then removed very carefully & placed on the model, again very carefully. The masks were very fragile. I removed the masks right after painting, while the paint was still some what wet. That way you do not pull dried paint chips up with the mask leaving jagged edges. I hope that helps.