I replaced a set on a 67 from Johnsmustang.com. They have been in for about 1 1/2 years with no issues. It's also non AC.
Chevy runs deep, don't step in Chevy.
chevy runs deep, Don't step in chevy!
289 - Holley 4150 570cfm; Performer intake; mild cam; MSD HEI; 302 heads; Roller Tips; Hedman Tri-Y headers; H-pipe w/Flowmaster 40's; 9 in posi 3.50; 205/50-17F; 225/50-17R.