So I've turned the 408 Demon into being able to drive on the street a little bit. A few short cruises, get ice cream, etc, etc. You don't want to go far in this car as it was more built for racing. Loud, noisy, rough, and probably not the most reliable! It's not what the car was built for but we thought we'd have a bit of additional fun with it this way. You get some strange expressions when you pull up next to someone at a light and they hear this thing idling!!
The engine is timed for the track with about 35 degree total timing advance (all mechanical). But with some light load street driving, and no vacuum advance hooked up, the engine is obviously retarded from where it should be if you were to optimize light load timing on a dyno. I hooked up the vacuum can on the dist and it gets too much advance - we're talking high 50's. The engine did not like that as you can hear evidence it's too much advance. Yes, it could be rotor phasing and such but let's not go there. I just want to limit the max vacuum advance to allow it to max out at about 20 degrees total vacuum advance on top of whatever mech advance it has. Is there a way to do that on these distributors/vacuum cans? I know you can put a small allen key in them and adjust the spring load impacting the level of vacuum when the advance starts but not sure of a way to limit the actual total amount of vac advance.
Looking for those out there that "been there, done that" and how you did it. I figure someone out there has already crossed this bridge. Thx!!
