Back in 1965 we put 3x2's off a 406 on my friends '60 352/360 Starliner and removed the bent front bumper. At a local dragstrip those modifications put the car in C/Gas. That class was full of Tri-five Chevys and even a couple '41 Willys. Here is a photo from near the 1/4 mile finish line showing a close run against one of the faster C/Gassers that day. The '56 Chevy won by a fender over the Starliner. Not bad for still having the T-85 3-speed tranny. My friend was told not to bring the Starliner back until he got a blow-proof bell housing on the car.