Re: Is ZDDP good for your motor?
Zinc was put in oil for a reason and taken out due to full roller cams. Don't need it with all that drag taken away. Never hurts to add a little. Lucas oil stabilizer is the stuff I use...don't know if it has zinc, but man...talk about something that keeps the oil where it should be. 
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"Excuse the rust I use my truck"
1964 GMC 1500 305E/sm420 4 barrel intake mod and dual exhaust.
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1964 Chevy C20 292/SM420
1966 Chevy C10 292 hotrod 6/TKO600
My youtube channel aka Military Chevy:
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