[vector1]

clois is correct and that is some good advice, which i considered.

i had something similar in engine analyzer, so i put your specs in and came up with 439/443. if your compression was 10-1 it would be in the 457/465 area, for comparison. if you had a good 10-1 408ci you would be in the 550/550 area, but would cost bigger heads also.