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Originally Posted by biagionim
Ok so here is another update, I just checked total timing and you guys are flip on this haha, it's 55!!!! And I haven't had a chance to mess with it after that. How would I go about reducing total timing?
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With vacuum advance hooked up and working 50°+ is not unusual with the engine reved up. Especially true on 8.0:1 CR smog engines.
There's been several posts about changing spray pump springs on these carbs. They need a stronger spring on the pump, or a weaker spring in the well.
The cam you're using will kill a lot of idle/off idle power compared to OE. It's advertised to be used with 10.0:1 plus CR engines. With the 8.0:1 350 it'll feel extra weak till you get it reved up.
So without a good stall converter you may have a problem that can't be tuned out. This happens when you run mix matched parts.
At your CR you shouldn't be having hard start problems with base timing at 16°~18°. I've run 20° plus base timing in cammed up 8.0:1 CR 455's without hard start issues.
You can tune it where it will do the best it can. With the wrong combination of parts, what you've got may be close to the best it's going to do.
IMO A lose converter that would allow the engine to catch its breath needs to be thought about. That would be after you get carb and timing straightened out.
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