I use this type in my 512, they work great. the spark is not shrouded by the ground strap.

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Last edited by csk; 09/17/17 09:59 PM.

1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5