try a 3.73-3.91 gear with the .474 cam


In the 4 dr I'm running the 323" with a MP2783 .430/.444" 340hp cam, and have smashing results with a 3.23 gear and 4 speed manual.

2783 Runs out to 5000rpm or so. The .474 will like 5,500rpm + with a 3.73 type gear.

I felt a large cruising difference from a 3.23 to a 3.73 with 25.5" tires...

For me, every engine with Hyraulic lifters and pushrods has always ran out around 5,500-6,000. A solid lifter valvetrain has to take charge, from there, give or take.