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Old 02-24-2004, 05:55 AM
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Any Edelbrock experts out there

Having problems with my new Edelbrock 1405. It's on an 81 Chevy with a 305, pretty much stock motor for now. It's a daily driver that runs elevations from around 3,500 to 7,000 daily. When I put it on a couple of days ago it ran pretty bad at elevation and only fair in the valley. Leaned it out per the manual (8% lean) now it idles and runs great in the valley and idles great at high elevation but it runs worse coming up the hill. Has even less power than it did before. I'm thinking that maybe I went too lean in the power mode and need to richen it up a step. So how do I leave the "cruise" mode alone and only play with the "power" mode? If I read the manual correct I have to go back to stock jets in the front and swap out the rears and the rod but won't that screw up the "cruise" mode and do away with the gains I've already made? Thanks for any suggestions. Oh, the rest of the beast, ignition, electrical, timing etc is in good shape.

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Old 02-26-2004, 11:42 AM
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edelbrock.

dump the edelbrock get a holley.
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Old 02-26-2004, 11:54 AM
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What springs did you use? A lighter spring will enrich the mixture [primary side] with less throttle input. Also can just swap rods and leave the jets the same.
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