Not being very familiar with cats I've run into a dilemma.
I have installed a Whipple on a 502Mag in a HTM SR24. We also installed an IMCO lower for water delivery to both the motor and IC because HTM says they do not advise any type of transom or thru hull pick up.
We've installed the restrictor plate from Whipple and everything else seems normal except we are only seeing 10-12 lbs at 3000 rpm and then it actually drops to 7-8 at about 4000. We stopped there not wanting to take any unnecessary chances.
Is this a normal circumstance or should I look for a posiible problem elsewhere?
On my V this setup produce excess pressure that I blow off at 25 lbs.
Any insight would be appreciated.
Thanks