For me It is all about run what you brung and my idea was to build as much usable power in a relatively low range with limited compression ect.I already had a set of low miles 318 heads collecting dust that had a nice valve job on them,they were also cc'd at 64 to help get "some" compression out of the stock 360 vs. the huge chambers of a 587 head ect.The machine shop I use does everything with a serdi and custom bits and if the heads need nothing else it is a hundred bucks-it is a steal!,but is not necessary to get in the range of h.p I did.I figure at most the car would lose .1-.2 in the quarter if I had to guess between a good sealing factory job and a serdi-but this is as directly related to my combination of limited parts.This is not that hard to do with some research,knowledge and desire but keep in mind this was not slapping parts together.You get into alot of compromises such as going with the larger comp xe274 with only 8.5 actual compression since you need more cam to make power with the limited lift of the stock rockers,but in this case the velocity of the small heads helps you out with bottom end performance.I also had a spot on tune but it just shows there are many ways to make power on the cheap and this goes with what Wilde is showing here.You can p.m. if you would like more info,I dont want to steer this thread off course anymore,thanks for the thread Wild.