Quote:
Originally Posted by Mike in AZ
Define "better"....... More lope? Less lope? More responsive?
Mikey
|
It "idles" better. After I had AZ TPI swap out the 4.56's for the 4.10's three weeks ago, I experienced a rough idle. Joe spent the better part of an hour and a half Saturday re-tuning Hellvis with all the modifications that have been done.
Right now, it idles about 850,(per the factory tach, I haven't checked it with the nav unit) and at a cold start doesn't surge.
Joe advised me to swap the OEM fuel pump out with the aftermarket Lingenfelter unit, which will raise the fuel pressure from about 39 GPM to 75-80. Ordered it today.....