yes the Edelbrock work and they work great. I have run them on a std bore 318 with a very mild cam 202/208 @.050 417"/441" and made 224hp at 4500rpm on the rears and the car was nice and with lots of torque.
now I have swapped in the purple shaft 284 adv 244 @.050 .528" solid 112 lsa and moroso electric water pump. I'm using 273 adjustable rockers although I have 1.6 stainless rollers to try later. the motor has a very good 4000 hi stall and 3.23 lsd gears and it pegs the tach to 7000 off the line and will do the same if you short shift straight to second gear smoking 255/60/15's like they were cheese cutters. dyno numbers will be coming soon.
oh yeah it still a std bottom end 318 with 645 rods