340 rebuilt

I have never been impressed by any comp cams or lifters. Had a friend who built a 1970 pontiac gto with a buit up 400. Used all comp stuff cam wiped lobes within a few weeks!! Called summit where he got it. Sent him another cam kit. Upon break in cam wore lifters and lobes!! He was very angry. Called summit said either give me my money back or something better. They sent him a crane cam & lifters. No issues till today. They also suggested isky.