Debating on a head and cam swap on the 318

I'm not real sure what the gearing is now, and the converter foot brakes to around 2k I've had it flash around 2400, idle quality isn't a concern nor is vacuum. The headers I have are the typical 1-5/8" with 3 inch collectors. I'm also running an MSD 6AL, with a pro billet distributor w/o vacuum advance. I also forgot to mention I'm running a 150 shot of nitrous. I'm planning on a gear change in the near future but it won't be anything higher than a 4.10