x2 we need way more info about the engine to be able to point you towards which heads. Luckily, there are a ton of options out there for you that are sure to make a good gain in the power department if you have basically stock iron heads now.
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Trey
Current ride: 2001 BMW 540iT soon to be manual swapped.
Former rides: 1979 Trans Am WS6: LT1/T56, Kore 3 C5/6 brakes, BMW 18in rims
00 BMW 540i/6: Suspension, wheels, and ACS bits.
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