So we found a crack between a top head bolt hole and water passage, other than that the late model has been great, I have a 66 289 block and another 5.0 block . which to use for 425hp bracket and why....I already use hydraulic short travel link bar lifters. This in an NA on e85 3 inch stroke 10.2 to 1 deal. I know about SHP blocks, I know about a Windsor, etc..... and I am willing to hear opinions and experiences thanks need help