Here’s our Banks twin turbo layout that was developed in our 67 Chevy panel truck, The White Tortilla. This picture is a slightly later version which used an R4 AC compressor which we added in 1977. The front drive is Banks as well and used V-belts. There was no Vintage Air and no flat belts back then. We did our own valve covers as well. The engines were based on our marine SBC long blocks. With water/methanol injected before our blow thru Holley we were right at 800 hp.
I’ve done this layout thousands of times over the last 40 years, it’s sorta like I’m signing my name! Our LS layout is coming and it’s very new but still rocks the basic look.