That is pretty bad , hence my tunnel ram with 50% fuel port and 50% back pf blower and yes I want to see afrs on individual cylinders.

As far as water flow should I get 2 stage pump?
Would that help with volume ?
Feed the headers with one stage and engine with other ...??

We run a 2 stage pump. A -20 out of both stages to the bell housing, then 2 -16 to each side of the cross over. No thermostat or reducer then 2 -16 to headers. On the jumper from the header to the tailpipe we have a reducer to adjust water pressure. When we went to CMI to have the exhaust built they wanted full flow to and through the header. When we put whipples on I will run 2 pickups on the stakes to feed the intercooler. No pumps on the intercooler.

So basically the same set up as a single stage but you`re using both stages to feed the bellhousing so double the volume?

I run 1.25" hose from pump to bellhousing out the bellhousing thru the manifolds into engine and then tailpipes. Mostly all -20an but doesn`t really matter since the manifolds are 3/4 " bungs
What I was trying to accomplish by going thru the manifolds was a little higher water temps at idle.
I gotta re think my water set up .