If you put any FI on to a stock engine all you are doing is pulling up a seat at the slot machine and pulling the handle every time you slam the gas pedal. Don't take the risk. If you skimp now, you pay double later, it's that simple. While NA engines may and do last, it won't be for ever. From my many hours of research on this topic (as I plan to Roe SC The BATRAM) this is easily the biggest consensus and in layman's terms: Stock crank, cam and heads are more than fine for 800rwhp+. Pistons and rods are good for about 550rwhp (
max). Get some forged pistons (Wiseco, JE or Diamond) and some nice brand name connecting rods like K1 and you're pretty much good to go. Have the engine rounded, balanced, port match the heads, new gaskets, upgrade the plugs and just do an overhaul of the "little" items as you do with any engine build (like ARP head and cross bolts and main studs, rod and main bearings, etc) and you'll have a very reliable, safe and stout street engine. The biggest and just about as important of not equal thing after a good build is having it tuned correctly.

For $ reference, I plan on spending around $8-10K US on engine parts and around $5-7K US on the engine build itself. Supercharger purchase and install
not included.
Best of luck mate.