The ignition is an MSD 6al and the chip is in at 7000rpm. Fuel pressure down track is a steady 7psi and i had the carb open 6 times to change jets and check over internal parts. The Comp is a .508 lift hyd flat tappet and the springs are comps that were recommened for that cam but I used them on the MP .508 originally. The funny thing is the cars ET is the same as the old cam without the miss! LOL and the Mph is only down 1 mph. I'm just afraid the springs have given up the race. Thanks for the all the ideas