Need upgrade advice SBC

[Martin_Nissen]

I am looking for guidance to where I should put my money in upgrading my 355" sitting in my 69 Camaro

Back in 2005 I had it dyno'ed to make 232hp@4600rpm and 400Nm@3500rpm. It had a Edelbrock Torker 2 single plane intake, cast exhaust manifolds and glasspacks. The heads were and still are cast nr 462624 milled down so they can't take anymore milling. Not sure of cc's but definitely less than the original 76cc. The carb is a 600cfm Holley with vacuum sec.
The cam is a Crane cam and i believe it to be a 12353916 with 204/214 @ .50, 423/446 lift and lobe separation 110.



Last year, during a frame swap because of damages, i decided to rebuild the engine. I wen't the economy way and bought a complete rotating kit from Summit and put the engine back together. The cam, heads and carb was reused, but the intake was swapped with a Weiand Stealth dual plane intake (8150) and some cheap Dynomax headers. Exhaust is now 2,5" with standard oval mufflers.

I don't know how much more power I've got, but it seems that the engine is running more powerful. But now to the actual purpose of this thread (sorry for the length already)

I'm considering new heads, new cam and some 1,6:1 rollertip rockers, but I don't know what to look for regarding heads and cam