Thread: Roush 427 IR
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Old 12-24-2019, 11:24 AM
Thunderbird123 Thunderbird123 is offline
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Join Date: Dec 2019
Cobra Make, Engine: Backdraft RT4 - #2145
Posts: 26
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I just placed an order on a Backdraft and wanted some input on a 427R or a 427IR. For the $12,500 difference is it really worth it based on your experience with your motors you guys have invested in?
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