afr heads
i love my AFRs the tipin, low end, and throttle responce is AMAZING. you have so much feel and are way more connected to makin the engine do what you want. and like Patrick G said they have awesome gas mileage it seems. my 233-239 H/C made 27mpg on a quick SD tune and the 402 as well has made 27 mpg MAF tuned.
im one of those guys that is pushing the displacement envelope of the 205s. i had called Tony Mamo last week as i was thinkin of going to a 225 but have decided this winter to send him the heads so he can "open them up, and do his thing" this will also include a new wilder cam. all while keeping the most bottom end as possible.
if you have the money spend it on the heads you wont regret it



