Thank you once again smile

Yes they are Coyote coils.

I trimmed .125 off the end of the rubber boot with a razor blade. (inside is a spring as well that had enough range)

Shortened the ridge on the plug tubes by .200 on a belt grinder.

Used a bolt and .400 thick threaded spacers for mounting.

I'm using a Holley HP ecu.

69 Charger. 438ci Gen2 hemi. Flex fuel. Holley HP efi. 650rwhp @7250 510rwtq @5700