I may not use this for the LS swap. Have not decided yet. I will likely just get a new tank with 255lph pump in it, but I did this work planning for the FiTech system.
Suggest you call and ask the difference between the 81073 and 81074 before ordering to confirm what's below.
Looking at the photos and specs, the 81074 is the equivalent of the Holley 302-1, and the 81073 is the equivalent of the Holley 302-2.
The Holley 302-1 is the one that fits a 55-57. It has the additional benefit of being able to clear a longer stroke, but that's not a problem with the LS6.
You are doing so many things I want to do with my 57 210! I love the Cragar look! It definitely set me off on mine when I saw it. I will be keeping this post in mind, as I will be doing a motor, trans brake, power steering, and A/C upgrade! Great looking car...Thanks for sharing!
about time for an update! Summer was great with the A/C. I never finished the EFI setup, i just kept driving it on the 4 barrel.. Well winter is here and teardown began. first up was the LS6 cleanup. I was going to just leave the heads on and change the cam, and springs... but along the way i noticed a couple lifters were collapsed. so parts were. Texas speed " Cleetus Mcfarland Bald Eagle" camshaft, PAC springs, hardened pushrods, new valve seals, LS7 lifters and trays. with a little valve lap job for good measure.