Don't know how much power you're looking for but IMHO these cams have way too much lift then works well with the LS3
Look at the LS Hot Cams. Easy on the valve train and perform extremely well.
I installed a 480 in my buddy's 69 and I just installed a 525 in my new 69 Protour Car.
The 525 is more fun then the built LS7 i did in my last car.
Camshaft LS376/480:............................... Hydraulic roller tappet
Lift:............................................. ............... 525” intake, .525” exhaust
Duration: .................................................. . 219° intake, 228° exhaust @.050” tappet lift
Centerline: ................................................ 112° LSA
Camshaft LS376/525:............................... Hydraulic roller tappet
Lift:............................................. ............... 525” intake, .525” exhaust
Duration: .................................................. . 226° intake, 236° exhaust @.050” tappet lift
Centerline: ................................................ 110° LSA
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