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I have a 93 bounder motorhome with a chevy 454 engine. I started to get a popping out of the carb when climbing hills, changed plugs,dist cap and rotor which helped about 50% any help to keep me out of Chevy dealers would be very helpful. "Good Motoring"
Change the spark plug wires.Works for me 86 Itasca 27 foot. Good Luck a Happy camping MIKE and Hello Rich. OH I like the after market wire loom to mount the wires on I think I used Mallory type lots of good ones out there.My factory type had no support and the wires reached over the valve covers with lots of flexing when on the road. I think that caused them to fail early 26 k mi.Maybe there are better mounting type now.Just my two cents????
On several occasions I have seen a carbon build up on the valves from leaking intake valve seals. The build up is so bad that it prevents the valves from closing quick enough under loaded conditions. I had one so bad that after sitting all winter, it wouldn't start.
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