Originally Posted by
HemiJKU
Have you determined the answer on the displacement question. I have dyno'ed mine two times now am made some changes. Fuel and air, as well as removed WOT delay. 93 pump gas as well. I am making 268HP 2nd gear pulls at the tires with 37x13.5 4:88 gears and told by my tuner that is very respectable. I am having an issue with the JSS air box and IAT running hot and pulling timing out which I am just starting to work thru issues and have created a temporary airbox enclosure around the JSS box. My IAT is getting over 120 even with outside temps in the 50s. Mostly in traffic and stopped. But as soon as summer is here I will be right back to fighting the issue. Thinking about going to a better fan and shroud systems with a closed air box with vent to front grill.