Hey Jeff,
i do like the look of the un-even stack set up. jeff
There's actually a reason for the uneven stacks on a big block. The short stacks on 3,7,2,6. Early on with a lot of research, in the late 60's and early 70's on the dyno they figured out if they run 21 1/2" and 18 1/2" stacks from the valve head, it totally smoothed out the torque curve from 3,000 to 5,000 rpm, where with same length stacks the torque curve was irratic and ran better with different size nozzles on those cylinders. That's why you see a lot of the old Crowers with a rubber hose between the bells and the stacks. The 3" stacks i have has that setup, but i talked to Kinsler and he said he would make me solid one piece alum stacks to any length that i want for $40.00 each, which is probably what i'll do. I don't know why i keep buying this B/BLK stuff unless one day in the back of my mind i'm thinking on building a B/BLK. I like them it's just that everything i've ran and have for the last 20yrs. is sm/blk.
Zip.