Moparjack 489
Well-Known Member
Hi guys , I still fighting with my 440 cui in my 73 coronet station wagon about timing and pinging problem .i run the auto lite 85 spark plugs Now my question ;
I like to try one step colder spark plug , what I can use ?
I have also in my storage brand new AR 73 race plugs from auto lite , but I read they have no resistor .... what this means ? What you need ( or not need) to run a non resistor spark plug ?
I have a firecore race distributor and the Rev-anator box + coil .
The pinging is not at total advance , the pinging just came under load in high gear if the water temp raise over 180 F and I speed up from about 2500-3000 the ping will mostly came on about 2600-2800 rpm’s, if I full throttle from 3000 rpms up there no problems
I like to try one step colder spark plug , what I can use ?
I have also in my storage brand new AR 73 race plugs from auto lite , but I read they have no resistor .... what this means ? What you need ( or not need) to run a non resistor spark plug ?
I have a firecore race distributor and the Rev-anator box + coil .
The pinging is not at total advance , the pinging just came under load in high gear if the water temp raise over 180 F and I speed up from about 2500-3000 the ping will mostly came on about 2600-2800 rpm’s, if I full throttle from 3000 rpms up there no problems