I'll check spring pressure but should be fine. Cam in car now is big lift long duration and a lot of overlap. Way to much cam for a basically stock motor. It doesn't seem to come alive till around 4000 RPM. Cam specs are unknown. Previous owner would only tell me it's a racer brown cam. Probly be a good cam if you were running 4;57 gears. But not good in the street with 3;55's