problems with the ignition timing? 350csb

[mangejansson]

Hello there!!!
I´m new in this forum and I´m building a 350 csb with a blower.
Last year it worked perfect and now when I´m rebuildning it and try to start it starts.
When I check the ignition timing it´s 25degr. at idle speed. Same as last year.
When I go up to 3000rpm, the timing is 22deg.
At 4000 rpm, the timing is 20degr.
Shouldn´t it be stady at 25deg, no matter the rpms???
What can it be that makes it behave like that?

mail me your ideas at
mangejansson@telia.com

[skids72]

Hello mange...

Try disconnecting your vacuum advance and shoot it again. I think you will see different results. By the way, did you have the blower last year?

Chris

[nitrowarrior]

Advance weights should be looked at. Too many are reversed during inspection and as the thing rotates, they pull the rotator to the opposite direction. Just a thought.