Spark plugs for 69 911E (with Webers)?
 

What are the correct Bosch spark plugs for a 1969 911E 2.0 litre engine that has been converted to Webers?

Right now it has Bosch WR7DC plugs.

I searched for a related thread but came up blank.

Thanks in advance!

i would use NGK BP6ES for starters, equivelent to a W8DP. then see how light or dark they look after 100 miles. there really is no plug listed for that engine combo, so you gotta start somewhere. hopefully the carbs are jetted properly, because too rich or too lean will have more effect on the color than the compression ratio will. a medium brown is in the ballpark.