Ran my pick up in time trials today. It's a 87 Ram with a 5.9L Magnum straight from a 2500 Van. 670 Holley, M1 dual plane, shortie headers. Behind that is a wide ratio 5 speed manual. 4:1 1st, 1:1 4rth.

It's 4000lbs, 3.55's with a 28" tire.

I've slowly advance the timing from a conservative 28 deg to 32. It went from 15.11 @ 90 to 14.80 @ 91.5 mph.

Here is where I need your help. It ran it's fastest and quickest time rattling in 4rth.

Backed it to a safer 30 deg but it slowed to 14.94 @ 91.5 and I want my tenth back.