Hey y'all I got a 90 4.0L 5speed xj that is running super rich, I just got it about a week ago so I don't know much. It seems to be idling fine and drives what seems to be great but I noticed inside the exhaust is black.. and I mean black. If idling and I give it some throttle it'll blow a bit of black slightly blue smoke out of it. Also I put my hand up to the exhaust and small black specks end up on my hand. I put some sea foam in her today so we'll see how it goes tomorrow.. but till then what do y'all think? Its EGR Valve is deleted, has MSD Ignition, MSD coil blaster and MSD distributor&plugs also has a Edelbrock cowl intake. Oh and previous owner removed the vac canister and went from closed to open coolant system. Thanks everyone
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