HardcoreB, this B1 instake flows well for what it was designed and ported to do, but it was not ported for land speed racing, heavy load at speed. Car (1969 Daytona clone) ran almoat 231mph as is, but I agree turbulence at the carb had a lot to do with the problems of distro. Moroso DS-2s that grew 2 1/2" in diameter at that speed caused the final drive ratio to be way too high, compounding the problem.

Still need an uncut Indy 400-3.
Thanks