i need info on buiding a 350 for my 144 blower

OK this is what I want,, I've got a great 144 blower and Ive used it on a 383 and I've decided to go a different route on the blower for the biggest hp I can push out of it.....I have a new forge crank and a cam it's a 274 Xe comp cam,,, I don't know if this is the best cam for a blower or not let me know

but I'm buying a 350 block flat tap hyd and need heads what size heads do I look for I know I want around 7.5 compression so any help to build this thing would be much appreciated ,,,

so any info on the best way to build a 350 on for the biggest bang.....and if you can give me any info to what route I should go on buying the things I need thanks allot ,,,,,I'm new to the blower engines and never built one yet so any info would be great