Its better to wait since the redline is so slick, the parts may not break into each other as well. Same reason why you never run a freshly build engine on full synthetic oil.
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-1993 Mustang, 900rwhp 03-04 cobra based 4v swap, full Griggs setup, project underway
-1994 Ranger w/ 427cid windsor (daily beater)
check it out!
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