Decobraman,
Keep in mind that as you increase the durations & overlap, you also push yourself towards a higher compression ratio. A 112 lobe sep offsets that a little, but not much. For ~$800 you can get the WP Jrs, a lot of bang for the buck. Also, for the HP your looking for you may have to rev out past 6000 - getting you close bottom end upgrades.
Crane and comp both make nice p-rods, including (crane) some slick adjustable units to help measure for custom lengths - and set the right rocker geometry if you going to use odd rockers/lifters. ~$30 for heat treated, ~$80 for chrome moly.
FordMuscle had a good writeup on a 400 HP/302:
http://www.fordmuscle.com/archives/1...se/index.shtml
Jim