i voted for the windsor jr's, they would be a better choice for what you're planning if you can't afford the afr 165's all the other heads you ahve posted have too big of a combustion chamber for your 289 and you'll lose a lot of compression, possibly enough even that will be disappointed with them. with those heads i would use a comp extreme energy cam, i can't get onto their site right now, but look for something with 220 degrees duration @.050, with the extreme energycam that should get you around .485-.495 lift at the valve. keep in mind that with any of the heads you have listed you'll have to change most of the valvetrain prices as well, pushrods and all of these heads use the newer style pedestal mount rocker arms or stud mounted rockers, so you'll have to change the rocker arms, and fulcrums as well, so that's another added expense, if you go with stock replacement rockers the cost will be small and you might be able some good used ones from a local machine shop for next to nothing, though.
well i was finally able to get onto comps site, looks like the XE256H-10 would be a good choice. it has .477/.484 lift and 212/218 duration at .050. would be a good match for either the windsor jr's or afr 165's in a mild street car. this won't be a barn screaming combo but will be substantially hotter than a stock 289 and still very streetable with a god idle and decent MPG as well. maybe even better than the stock 289 if you can keep your foot out of it. i would also recommend either a set of tri-y or shorty headers with this combo and it should work well with your stock convertor also.
? That is basically my engine with AFR165s, right?
