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I recently switched from a old Weiand 8011 to an Eddy Performer RPM. I've done three or four spark plug checks since the switch. 7 plugs are the nice light chocolate milk color, and #8 plug is almost white still. Is this normal for a Performer RPM, or do I maybe have another issue somewhere?
Engine is a 1969 302 block with 1970 port and polished with 1.94 intake and 1.6 exhaust valves. Compression is 9.3 to 1, and the cam is a Comp Cams 274 hydraulic flat tappet. Carb is a 600 vacuum secondary Holley.
Engine is a 1969 302 block with 1970 port and polished with 1.94 intake and 1.6 exhaust valves. Compression is 9.3 to 1, and the cam is a Comp Cams 274 hydraulic flat tappet. Carb is a 600 vacuum secondary Holley.