I really like my Twisted Wedge heads and as far as putting a blower in the mix, they are great. My 93' made 393rwhp and almost as much torque with an A-trim at 5psi and the top end kit. I would think either head would be a good choice, and not leave you dissapointed.
When I bought my TW heads I purchased the Track Heat Spring package which is the double springs with damper. I wanted to upgrade to a better cam than what I started with (E303) so I purchased a custom cam and was told that I should upgrade my springs because of valve float. Well I did that and now I don't think it would have been a bad idea for me to get the heads bare and put manley valves and comp springs that I needed based on cam choice. just a thought really you might end up paying a little more than assembled heads would run you with dual springs but less than if you would have to change them out in the future...