santafejay wrote on Nov 17^th, 2010 at 10:29pm:

MACP wrote on Nov 9th, 2010 at 3:59pm: I have this problem only with the C-130H af Japan Frames down to 1.5 Reinstall propack 1.3 and nothing happend I think is the smoke effect for model 10 please someone confirm this bug me I also have this problem with the JASDF C-130H.  It's horrible, smoke pours from the engines even though they are at idle.  The French C-130H works perfectly however and with all the other versions my frame rates rarely dip into the high 30's.  I've also noticed this same problem with any of the C-130H repaints I've tried from McPhat.  Strange! :-/

at some point the effect of smoke disappeared and the model worked perfectly.
As santafejay says is the model since I have tested with other textures and gives the same problem