Im looking for headers for the 540EFI that just drained my wallet. 600hp, 10:1, Merlin grumpy jenkins 320 heads, 63# Injectors. My boat runs strait through the transom from the stock manifolds now.
What is the header of choice, and what is the budget header?

I was hoping someone would know more about this subject than me! Come on guys its not hard.

i have some used stellings if interested call me i am in il. also 309-925-4621 karl

Thats a lot of compression for an iron head engine! I was told to keep my engine under 9.9:1 with Aluminum heads.

Im running a 540 with 10-1comp, same aluminum heads. Crane 741 cam and lightning headers.

Merlin Grumpy heads are iron, the VR series are merlins aluminum or at least as far as I know there isn't an aluminum jenkins head.

i been runnig stainless marine headers for 20years very happy with them i have a 540dart block pro1 heads dart intake 1000holley carb 650ponys

You probably can't zoom in but thats what these are.

Back to the original thought, whats the best header design to run?