HEI Ignition Coils

Anyone got any good recommendations for e-core HEI ignition coils for an HEI ignition swap? I'm going to test some more tonight, but I think the one I got from the junkyard might be bad. An MSD Blaster SS is only $60, so I'm questioning whether it is worth "upgrading" rather than grabbing another one from the yard. I've never been big into MSD because I think a lot of it is overpriced, but I'd be happy to be proved wrong. Or, if there's something similar that is cheaper - as I assume there would be it just wouldn't be painted red - let me know. The specific thing I'm looking for here is quick saturation time and low price. From the numbers I'm getting, the stock coils are going to run out of time for optimal dwell by around 2000 rpm because they take so long to "fill up". The E-core flamethrowers from pertronix seem like they could be okay, but they don't seem to have a whole lot of information on their site, so it's hard to really tell or compare them.