I use optima redtops in place of capacitors, I don't replace the one under my hood I add an extra battery, my redtop is under the passenger side seat right now. You can still run both if you want.

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Karen Wells, Moderator
The Mustang Works Magazine
http://www.mustangworks.com
1969 Mustang (Project Rice Eater)
1999 Silver Mustang Saleen S281 (SQ car for stereo contests)
SQ Goddess
My Stereo Bro "tireburner163"