Looking for some help. Im trying to figure out if I can change my cam without changing my valve springs. I currently have aluminum trick flow heads w/ max valve lift of .540 inches. The cam currently in the motor(383)flat tappet- is 228/234 [email protected] in ;.480/.494 in lift w/1.5 rockers. my question is would I be able to use the following cam w/o having to change the springs; lunati cam 227/233 dur .489/.504 in lift. The rpm range for this cam is 1800-6200. Im running a th350 w/ a 3000 stall. If this cam is not good what do you all recommend. this is a street / strip car. More street than strip. thanks for the help.