Drawing Board - possible 525/540 engine build

[67cherry]

Okay so for a few weeks I've been trying to figure out what I want to do for a new engine in my 67 chevelle. Here's what I've come up with so far... I'm building for a roots type blower so Ill keep the static comp. around 8.5 or so. Feel free to shoot this down - that's why I'm posting it, ha. Also feel like I need to mention that I will be running off of pumpgas bc it will be a street/ strip car not just drag.

Dart 9.8" block preferably w/ 4.125" stroke
(525cid so its not ridiculous on the road... can do a 540 combo though)
Dart 18 degree Race series oval port heads w/ 330cc runners etc...
comp cams solid roller grind:300BR-14 lift:0.652, 0.652 and duration @ .50: 255, 262 (cam is for superchargers)

*this is just the foundation for now but I'm open to advice or thoughts - please be honest - I want this thing to be right. If you think a blower would put this over the edge for the street as well please let me know. I've never built an engine with a blower so I'm not sure how it'll workout with the camshaft and displacement i've chosen to work with. If you think I need to go with a hydraulic roller or cam with different specs instead please make a suggestion on a replacement cam.

-Thanks