Fuel first, you can gap your plugs down to prevent fire blow-out. If you are staying under 450RWHP you are probably safe with 42# injectors, beyond that up to 600RWHP I would use a 60# set.
Any bigger and you need to go with a stand alone system such as FAST to support big injectors which have an incompatible impedence value with the stock fuel system, I can't remember off-hand if they are lower or higher impedence but anything bigger than 60 is where the change occurs. There is one new company that makes 71# at stock impedence levels.
The sacrifice of using a bigger injector is that you will burn a lot more gas at idle, coasting, and low load due to the injectors being used at less than 5% duty cycle at these points.
Go with the biggest in-tank fuel pump you can. You also need to upgrade your fuel lines if you go much past 500RWHP.
Once you have fuel right, then get an aftermarket ignition. You can open your plugs back up and see some top end gain at that point. Until you can get that ignition, keep your gap at .024" if you are less thant 10# of boost, for more boost go with .018". Once the ignition is in, you can open up your gap, maybe as much as .035" Use a dyno to see how much gap you can get away with. I would love to give you a solid figure but there are too many variables (combustion chamber shape, air velocity, boost level, ignition voltage, etc.) You will know if you have to much gap because the car will stop increasing power as you spin it up.
Anything else, let me know. If anyone reading this thread has better information than me, feel free to throw in your 2 cents.
Hope this helps.
i still have stock rods an crank do u think they will hold.
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