4.30s arent enough for it, car does 48mph in first gear and goes through the traps at 6200 in 4th. it will do 120mph @ 7k in 4th with the 4.57s, plenty of top end. The car should hook better with the 4.57s, less wheel speed and will be able to launch at a lower rpm.
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1999 Z28 T-Top M6 - LS6, Bolt Ons, Suspension, MWC Narrowed 9" - 415rwhp 385rwtq 10.847 @ 125.17
1989 IROC-Z H/T M5
2006 F350 SCSB 4x4 6.0L Diesel - Studs, EGR Delete, Powermax Turbo, Extreme Tuning & Exhaust - 13.23 @ 101
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