I'm buying one for my hubby, to put in his K20. It's a '67 or '68 with appx 15,000 miles on a rebuild. 427 heads, intake mildly ported. Needs carb. Sitting for 3 years. Bolted to TH400 tranny with 15,000 on rebuild, and NP203. On a rolling chassis, 3/4 ton drivetrain. Missing rear driveshaft. Axles are D44/14 bolt (don't know SF or FF yet) with 3:73's and a posi rear. I'm taking the axles, since they are the same thing hub already has. $1500 for the whole package. What do ya think? Carb suggestions? Pleased with your 396? Thanks!