THanks guys ! I have Melling pumps on my 1000's. I don't have restrictors to the top end . I have herd all different stories about that . I think the springs need oiling . I am in the final stages of getting them ready to go out for testing . I only had them running for a minute or 2 as I had a cooling problem ( NO WATER ) . I know it had pressure but not sure how much . I would guess around 40-50 with 20 /50 racing oil cold.