10k in pocket. New block or EFI ?

[FUNFER2]

Hello guys, I'm asking here for opinions and advise. I have 10 k to spend on my cobra and I have two choices.

Dynatek stacked EFI-

The Webber's in a Cobra have always turned my crank. When Dynatek came a long with it's Webber look a like EFI, I got very excited. Although I was confused about their computer being self learn, a few of you eased my mind & told be how it works. Now it sounds like a great product and looks fantastic. If I choose this option, I would like to polish, powder coat, ceramic coat and anodize some of the parts. It is very expensive though at apx. $6,000 + the pump, lines ect.....

New short block-

My 428 is a .060 over block. I haven't had any issues at all and it performs very well and sounds awesome. I would like a new aluminum 427 side oiler,..... just because, ya know what I mean Vern. I can not afford a RTR motor from Keith, George or other FE builders.

I'm thinking about using my 428 as a donor and buying a big bore for more cubes, short block, stage 2 Edelbrock alum. heads, larger cam and larger cfm carb. if needed. I have a Vic Jr. polished and ceramic coated intake, BG Mighty Demon carb. MSD 6-AL, Canton pan ect. Everything should swap from my 428.

600 + HP/TQ is my target, like many of you have. I have no problem lashing a solid roller valve train. I want it big & nasty for the street. I know the cam selection can be talked about forever but, that's not the issue yet.

I can assemble the short block or have the bottom end done by the engine builder. What would Keith's apx. cost be ? (I know, a lot of variables) just apx.

So I ask, what would you do with a 10k budget ?

New more cubes engine (hope for a alum. but, iron is not out of the question)

OR

Keep what I have, and buy the Dynatek EFI, and make it all pretty & cool looking. It should bring up the HP/TQ a.... little.

I'm sure a lot will advise a alum. 427 and more power but, the EFI is so,...cool for $6,000, unless I can talk them down. And some will also say, "it's your choice", but I'm asking what would you do.

Thanks, and let the fun begin.