Hi,
It sounds like your a little new at profiling, and can be difficult to do well. We purchased a KIC profiler that has software that will take your profile data and tell you the best oven temperature settings and conveyer speed to use.
You need to run it a few times before it gets very good, but it made a big difference to us, and we have great profiles now.
The software has paste settings for lots of types of solder paste, so you know the process window you need to fit. You can modify the profile in you have a part that needs a tighter window, such as peak temperature as an example.
Because every board is different no one can tell you the temperatures you should use, as it changes from board to board. So you need to get a profiling solution that works correctly so you can get it right.
If your new at it, the auto profiling software for the KIC might do what you need, and make the profiling simple. Other manufacturers might have something similar, but I only know the KIC model which is what we use.
Good luck.
Regards,
Grant
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