After last month's race, we changed the the gearing back and the tires.
We then went to Avenal sand drags mid April and went slower in testing. As I about to go run my first qualification run, the motor started missing. Worst, there was a ticking noise, so we loaded up the blazer and headed home.
The problem was a broken valve spring on number 4, a broken rocker adjuster on number 2 and the rocker arms was hitting on the valve cover.
After fixing the valve-train, we changed the torque converter since we suspected it was holding us back because we have been adding more power and not going any faster.