As stated, get a custom cam. I know you have one already but a custom cam is well worth the wait and effort. Bullet used to be the go to for me, but they are NOT what they used to be since Tim Langley left. I have since started using custom cams from Lunati, Mike is the guy to talk to over there. He will talk to you in simple terms and make it understandable. I am by no means a cam expert, but I know I can call Mike anytime and will make it understandable for me. You give him your engine specs, fuel info, vehicle info, gearing and what you will be using it for primarily and he will give you his opinion and advice on what to use. Great guy, great company and great product.
I have a Scat rotating assembly 408 all forged with CNC 220 BPE aluminum heads, with a street/strip ported Eddy Airgap intake with a Lunatic solid flat cam, rather big one, Running MSD pro billet ready to run distributor and getting a custom carb built by Dom with Thumper Carbs. Running a built 727 with a 10 converter and way to tall of gear with a 3.55 but also have a 4.10 chunk to throw in it when the time is needed.
I am very grateful to all the guys on here for their advice and suggestions. There is a hell of allot of quality and knowledgeable people on here. They will steer you right.