The old W2 416 ran 10.90 @ 135-138 so using the numbers we think it should be in that 145-150 range. We did dyno the 440 with the W2 heads and made just under 700hp which was about 60 better then the 416 was,that is when we decided to try another head. The W2 intake flow was 316 @650 and was done, the Victors are still going at 800.We don't plan to run it past 7500 rpm because of the valve train.
