For Sale: One Holley 850 DP model 4150 with mechanical secondary's. I paid just over $500 new, had it on my 429 SCJ in my MKIII for 3,000 miles. Switched to a Barry Grant Mighty demon 850 for MORE HP. Asking $300 plus shipping. Also have a set of chromed aluminum valve covers from Ford that fit the 429/460 engine that says "Ford Racing", that are 99% perfect. Will clear roller rockers. Asking $130 plus shipping.
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