DUI distributor
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DUI distributor
Wanted to get some thoughts on running DUI distributor. I've got an 84 with offy and a Holley carb. I already did the dura spark II conversion but I'm in the process of pulling the motor to get it rebuilt. I'm not real happy with my carb choice think ill give the weber a shot.
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From: Earth
It's a very nice piece and looks great, but would be a waste of money unless you're turning 7,000+ rpm. The DSII system works very well, better than anything Chevy turned out, and the distributor is pretty easy to adjust if you want to play with the timing curve.
You'd be better off spending the money on a wideband O2 sensor to help with carb tuning. Unless there's something not working properly to begin with there's not much performance to be gained in fancy ignition systems on a street vehicle.
You'd be better off spending the money on a wideband O2 sensor to help with carb tuning. Unless there's something not working properly to begin with there's not much performance to be gained in fancy ignition systems on a street vehicle.
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Yea I haven't done the recurve on it yet. I might try that. The carb is a summit/Holley brand electric choke. I hate it. It always seems to take 10 mins to fully warm up and you can drive it for an hour shut it off and crank it back up and still have to let it warm up. I've tried several different adjustments on it with the same results
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From: Earth
Where is the choke wired? The stator off the alternator may not be putting out 12v. Use a volt meter to check. Wiring it to the coil isn't a good idea either. Find a 12v source that's hot at run from the fuse panel and tie in there.
Lead Driver
Joined: Mar 2008
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From: Near Los Angeles
I'm thinking ... what do your plugs look like? If it hesitates, pops thru carb coming off the warm up, then I think you're lean. If you don't have a full 12v, however, it would make the choke open slowly, or not totally, causing a rich condition.
I agree with getting the wide band sensor.
I agree with getting the wide band sensor.
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"It always seems to take 10 mins to fully warm up and you can drive it for an hour shut it off and crank it back up and still have to let it warm up." This doesn't sound like a carb problem...and seems a bit ambiguous. What exactly is not warming up? The engine? Do you have heat/coolant plumbed to the Offy intake?
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From: Spokane, WA
That is not necessarily a carb problem...although it could be. If you blip the throttle moderate to hard enough and the engine stumbles or dies the carb might not be delivering enough accelerator pump shot. I'm not sure how it adjusts on that carb but I do know the carb you have...I had one of those when Holley made them but I never used it.
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