The answer is yes to both.
You can get any cam without ported heads, although the preferred choices here would be NSR or VSR cams that maintain full VCT functionality. You could also get SPR cams but since these have much higher valve lift, you'd really need ported heads to gain maximum benefit.
If you're intent on adding forced induction, there ARE certain NA bolt ons you can do to add more power:
1. Positive displacement supercharger: LT headers, camshafts, ported heads.
2. Centrifugal supercharger: LT headers, CMCV delete or aftermarket intake manifold, camshafts, ported heads.
3. Turbo: Underdrive pulleys, CMCV delete or aftermarket intake manifold, shorty headers, camshafts, ported heads.
However I'd suggest skipping what I'd consider expensive window dressing (aftermarket intake manifold, camshafts, and ported heads) altogether and spend the money on forged rods/pistons plus an oil pump upgrade with billet gears.
Even a 62mm throttle body could be considered unnecessary. You could port your OEM unit instead.
You can get any cam without ported heads, although the preferred choices here would be NSR or VSR cams that maintain full VCT functionality. You could also get SPR cams but since these have much higher valve lift, you'd really need ported heads to gain maximum benefit.
If you're intent on adding forced induction, there ARE certain NA bolt ons you can do to add more power:
1. Positive displacement supercharger: LT headers, camshafts, ported heads.
2. Centrifugal supercharger: LT headers, CMCV delete or aftermarket intake manifold, camshafts, ported heads.
3. Turbo: Underdrive pulleys, CMCV delete or aftermarket intake manifold, shorty headers, camshafts, ported heads.
However I'd suggest skipping what I'd consider expensive window dressing (aftermarket intake manifold, camshafts, and ported heads) altogether and spend the money on forged rods/pistons plus an oil pump upgrade with billet gears.
Even a 62mm throttle body could be considered unnecessary. You could port your OEM unit instead.
