Spark Plugs Question 351 C

walt2103Member

Went to our local Bosch service because of a severe technical issue I have with my 1975 Longchamp and thought BTW about buying new spark plugs. Ever since the motor runs with the ACDELCO R45TS. Now I have read that the perfect plugs are the ACDELCOs CR43TS. Was I using all those years the wrong spark plugs ? What is the perfect combination for my 351 C 4V ? Someone in the forum recommended the NGK 4 V-Power plugs (but can`t find them here in Germany).
Thanks in advance.

9/30/1612:28 PM

Original Post

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