i've been looking around trying to figure out how close the sidewinders (and i think therefore, the promaxx) are to the edelbrock heads. they seem pretty close. stealths flow a little less than sidewinders. i haven't really figured out if the edelbrocks flow more than the sidewinders but i imagine it won't be a large amount...

gotta give a thanks to dwayne for posting flow numbers (all over the place, and in the tech forums) and also giving me the lowdown on configurations of the sidewinders and stealths.

i'm not buying parts yet but i think some sidewinder type heads will be enough for a hot street motor i want to put in my coronet. save some money on the heads and put that towards rear suspension stuff or a nice converter...