I got it up to 3300-3400, when it started to break up (and has been all along).
It’s the Summit electronic distributor, part number SUM-851008.That's pretty good what distributer do you have?
Also have you run to 6K to see where it is there?
Its a factory 440,The timing may not be right but the curve is good.
What's the actual specs of your build?
If he can get the timing somewhat close to a factory high performance curve, that should be a decent tune.
The only picture I have is when I took the rotor off, but hadn't taken the plate off between the rotor and weights.What advance mechanism does that distributer use? Pics?
I wish I knew. Like Mattax said, it seems to be pretty close to a factory 440 by the measurement I got on the cam, but that's really all I know. Six pack, iron heads.What's the actual specs of your build?
Thanks, I will check the gaps. However, I will say that I had the same performance issue with the old distributor (this is brand new).Check the air gap on all 8 reluctor tips. I used the same type of dist last year & found the reluctor was machined out of round. Rel teeth almost made contact [ misfire when that happens ] with p/up. Found another reluctor & it was ok, uniform air gap.
Also check for shaft wobble, it can close up the gap, especially as rpm increases, from centrifugal force.
Assume you're talking about the outboards carbs on the 6-pak.I'd take a look at the vacuum pods and check function. Long story short, the rear pod has a "gummy" or "sticky" feel to it. It does move under vacuum, but not smoothly and does not return to position easily. The front pod is very different. It's smooth and I can depress the "arm" that goes into the pod easily, and it returns to position on its own.
I disconnected/plugged the vacuum line to the rear, and HOLY SMOKES, it's like I'm driving a different car. Acceleration using a heavy foot is night and day different. This was the first time I've been able to put the pedal on the floor and hear the transmission downshift -- before it wouldn't even get to the point of downshifting before sputtering and misfiring. However, it still stumbles at higher RPM, so I'm going to pull the distributor and take a look at the aforementioned items.
I have so many darn threads going on about this car that I wish I could consolidate into one.
Yes, sorry. I’m talking about the outboards on the six pack.Assume you're talking about the outboards carbs on the 6-pak.
That's good. Now you've isolated a problem. Leave them disconnected for now. It will work fine on two barrels, certainly for street use.
Yes , that’s Summits and Jegs version or name on the Firecore DistributorThat looks rings a bell but not from a Mallory or MP Mallory distributor.
Whose name on the distributor? edit. Bet its a Firecore. yes?
Can you take a photo of the springs? If they are what I think they are, they are not the same as the ones in my photos above.
Two Distributors , same issueThanks, I will check the gaps. However, I will say that I had the same performance issue with the old distributor (this is brand new).
I don’t have a picture handy, but it’s one of the light blue boxes I got from you a while back. I won’t be home until tomorrow to check the resistor, but would that drop the range all the way down to 3400?Have a picture of the ecu? They are rated for different RPM ranges and also matched with a certain ballast resistor value. just a example.
View attachment 1715879685