Plug lead question

South Gippy Rover

Active Member
Hi guys,
Have a 1975 3500s. I’m looking at replacing the HT leads and am wondering if there is a noticeable difference between the 7mm and 8mm leads when fitted.
Any pros/cons, limitations, personal experience gratefully received.
Cheers,
Paul.
 
from a performance perspective no difference, 8mm leads wont usually fit in the the lead retaining clips
 
Got some from Performance Ignition in Nunawading, a few years ago. Had to a wait a few days whilst they made a set up for the P6B. Also replaced plugs at the same time. I use NGK nowadays.
 
Can't recall but suspect it was 7mm, remember talking to them about the core material and accepting their advice.
 
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