[Iceomatic]

I'm currently running a stock 69 400 shortblock with Edelbrock RPM 72cc round port heads, Comp XE274H cam 230/236 @0.50 110 lsa, RPM intake with Tin Indian 1" spacer, Holley 770 street avenger, Hedman 1 3/4" headers, 3" Pypes X pipe dual exhaust with tailpipes, TH400, 3.73 gear, 3000 stall converter.

I'm planning on swapping out the shortblock for a .030 over 400 with forged flat tops, ARP bolts, stock crank/rods and change to a hydraulic roller cam.

My questions are;
If I send out my heads to be ported what level claimed cfm should I be shooting for? I thought 315/325. Is there a too big for a 400?

Should I port match the intake or use a different one altogether?

Should I go bigger carb?

More converter? I don't know that I'm into much more than 3500 but???

Cam I'm thinking 230/242, 237/243 ish something in that area? 2500- 6500 range

Is there a point in 1.65 rockers?

This is a street tire shredder. It's pretty fun as it is but if I'm going to put in the labor, I'd like a little more out of it. My friends recommend a 950 or 1050 carb, 1.65 rockers, 4000-4500 stall, single plain intake, 330 cfm port work. I feel like that might just be the "everything bigger is better" theory or the fact that they have more drag focused cars in the 10's.

Anyway, thoughts on a 400 ripper? I just want to make a solid combo without a big pitfall somewhere.

Also in a 72 A-body with power brakes. Any other info let me know.