zurek30

I am hoping to get some advice. i am currently running basically a 125 shot on my car and just looking to add as much as possible to it without rebuilding the engine or starting over since i dont know crap about it and always hire people to do the work. Below is what i had built a couple years ago and just wondering if it would be safe to jump the NOS up to about 200-250 and what would be required.

Thanks for the help in advance.

427 CID GM 6.0 iron block, forged 10.5:1 pistons with full floating pins, 4340 forged crank, H-beam rods, file fit low drag ring package, new cam/rod/main bearings, HiTech Motorsport custom ported heads, stainless valves, Nextek dual valve springs, steel retainers, performance pushrods, HiTech custom roller cam, new hydraulic roller lifters, ARP head bolts and main studs, roller timing chain set, new oil pump, new cam/rod/main bearings, new performance gaskets, NGK spark plugs