[KingLT1]

It all depends on what your goals are. Some things to consider in no particular order.

A 550-600whp H/C/I setup is similar in cost to a 700whp Supercharger setup. That could be off set depending if you are doing the work or farming it out. Above 600whp you need full fuel system and/or meth for FI and above 700whp I would be looking at rods and pistons for the Supercharger setup and that will drive the cost up quite a bit.

There are some SBE FI cars living well above 700whp and I would be comfortable pushing mine above that since I understand the tuning side of these engines and frequently data-log to keep a eye on things, but it's not for everybody, nor would I recommend it for the average car enthusiast.

Going more then 600whp NA also drives the cost up substantially as you would be entering a different price point for engine components to support that kind of power. More exotic heads will be needed, ported high ram intake, better valve train components to handle high rpm...etc.

If you go with a PD supercharger you don't need to upgrade the manifold or converter. H/C or Centri car will "Ideally" need a converter and that is another 1200.00.

Supercharged car will drive like stock. 600whp H/C/I car will have some compromises in drive-ability unless you go with a mild setup then you are probably looking around 525-550whp.

H/C/I converter car is more labor intensive then a Supercharger install...especially compared to a Centri.

A lot of the Cam kits I see likely won't go more then 25k miles before needing valve springs and possibly lifters replaced. The springs will wear out faster due to the ramp rates of the cam and higher spring pressures aside from how easy you drive the car. FI car could go much further depending on how it's driven. The main thing will be keeping the combustion temps low to prevent from pinching a piston ring if pushing the power up past 600whp. Octane and cooling mods are important with FI on these engines.


Just throwing out some random things to consider between the 2. I don't really see one being better then the other. I have have had several NA and FI setups over the years. What I like about my current setup is that it's a total sleeper. It doesn't drive or behave any different then when it was stock. Just feels like it has more a lot more power everywhere when you give it some throttle.