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Did a 455 for a Panos in Sweden;
.030 SRP Pistons, 10.85:1 comp. Stock N Crank Std/Std, .0032-.0035 mains, .0024-.0027 rod clearances Melling HV pump, out of the box Moroso pan 7qt Mains studded and strapped Stock Rods w ARP bolts Stock C heads except w 4 angle valve job, 2.07/1.68 valves, crossovers filled, divider welded Stock Performer except cut divider, no porting anywhere Out of the box 830 Quick Fuel 1/2 open Spacer Chinese HEI Hedman 1 3/4 headers Erson Hyd Roller, 238/246 @ .050, .584/.592 lift on a 110 in at 106. 1.6 Scorpion Roller Rockers
465hp at 5200, 524tq at 4200 running fat at 11.8-12.0:1 air/fuel on 93 pump, 29 degrees timing.
If we leaned it and added some octane I think 480hp/540tq wouldn't be too far fetched.
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