Heater core removal help!

Setsuko37

New Member
Aug 13, 2011
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Canal Winchester ohio
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so while doing some weight striping came to a problem behind the dash with the heatercore removal.
Do green and red ones go threw the firewall and connect?
and if so can i just block the lines?

and do i need a cold start injector or can i just block both those off, supra wont drive in winter so no cold starts.