Well, I got my 390 together and down it the car. .060 4.11 bore stock 390 crank and rods, ARP bolts thru out. DSS 5003-4110 10cc dish with 10.08 comp with 72cc heads. ProMaxx shocker 200 heads with 2.20 and 1.73 valves. Performer RPM intake and Performer RPM 800 carb. Now the problem. Edelbrock Performer RPM cam. This is a COMP CAM and lifters. I know I'm not the first, but I just had a cam lobe flatten out or the lifter failed and mushroomed out. Just one lobe that I can tell. The lifters will all slide up out of the bores easily except one. It comes up and stops just as the contact surface comes up to the bore in the block. Like a 400k mile old lifter. I went thru the break in process by the numbers. I have built several Chevy and Mopar motors thru the years and never had a cam break in problem. This is my first FE build, although I've had four before, just never put a cam in one. This really sucks. I guess its time to pull it all the way down with all new bearings, disassemble the roller rocker shafts and inspect them. Maybe even look at the rod bushings. Do you think that I am just one of the many many to be bitten by these COMP CAMS defects they are putting out? Any suggestions for a replacement ROLLER cam and lifters and pushrods with around the same specs as the Performer RPM cam that is 296 Adv int/exh 236 @.050 Duration 572 lift int/exh with 108 LSA 103 int centerline. I understand using the 128 rule that the 108 LSA should be correct for me. This is going in a 64 Galaxie fastback with a TCI streetfighter C6 and a TCI breakaway 2400 converter. I will be running 3.89 gears. I know, a bunch of questions. But any thoughts or ideas would be great. Thanks