86 k10. What's up guys, so here's the deal got a pretty good deal on rebuilt 454 the throw in my 86 on 42 in tires. The motor I got has the 781 heads 2.19 in 1.88 ex, but flattop pistons. Now should I go with dome pistons and the 781 heads, or stick with the flattop and find a closed chamber head. I don't have the cam specs at the moment but it's a comp mild street/strip cam. The truck might see some mud bogs 3-4 times a year and other than that just some joyriding. Thanks