havent changed spark plugs in over 3 years, strangely car starts same as before

old: champion rc9ycc
new: ngk bcpr6es

flisko said:

havent changed spark plugs in over 3 years, strangely car starts same as before

old: champion rc9ycc
new: ngk bcpr6es

Click to expand...

still good ,
or hoping for better..??

in 3 years - you could well have compromised the delicate cabling..

ht leads and coil packs were changed, dunno why i never changed plugs

Plugs will last a long time. I doubt you'll feel any difference (but emissions will probably be a bit lower).

There are no delicate cables on a Mk1 -- in fact, there are not really any delicate components apart from the stat and the rocker cover gasket.