Heres the 1967 vette' chart, pasted from www.carnut.com

1967 300 H.P. V8-327 4 Barrel 4.001 x 3.25 327 10.25 300 @ 5000 360 @ 3400 30-45 AC 44 .035 .019 28-32 18436572 6° / 4° ATC AIR -12
390 H.P. V8-427 4 Barrel 4.251 x 3.76 427 10.25 390 @ 5200 460 @ 3600 30-35 AC 43N .035 .019 28-32 18436572 4° -12
400 H.P. V8-427 3x2 Bar 4.251 x 3.76 427 10.25 400 @ 5200 460 @ 3600 30-35 AC 43N .035 .019 28-32 18436572 4° -12
425 H.P. V8-427 4 Barrel 4.251 x 3.76 427 11.0 425 @ 5600 460 @ 4000 30-35 AC 43N .035 .019 28-32 18436572 12° -12
435 H.P. V8-427 3x2 Bar 4.251 x 3.76 427 11.0 435 @ 5800 460 @ 4000 30-35 AC 43N .035 .019 28-32 18436572 5° -12