Alrighty...Blew up a lifter and got a little cam lobe wear. The plan is to replace the cam, lifters and my GT40's valve springs. The car is a street car, perhaps twice a year to the track, soon to be a open track wanna be daily driver. I have an E303 cam now. My desire is to have good low end (if its giving up at 5500 thats ok), good lope, pass emissions. I have an Edelbrock Performer RPM intake. Besides going back with the E cam, what are other viable options? Thanks in advance for your help.