Im in the process of rebuilding my 540 the recipe consist of the following.
4340 4.250 crank
4340 6.385 h-beams
10.3 to 1 pistons(119CC)...last go round it was 9 to 1
DART PRO 1 325 2.300/1.880
Professional products single plane intake
This is going in 29' warlock. My question would going to a Dart or Edelbrock single plane intake make any difference r maybe bigger carb