Diff gear recommendations

OK, so the cam card calls for 3.91-4.10 gearing...is there a reason why you think that is not a recommendation you should pursue?

I say this b/c it's about the 'combo', right?

Had a hydraulic flat tappet 238/244 @108 LSA in my 360 motor, 4K RPM Dynamic converter and 3.91 gears. Felt pretty good, but it also felt "wanting" more gear. Went to 4.10 gearing, the motor LOVED it!

I am now running a hydraulic roller cam 240/248 @112 LSA but ground 4 deg. advanced, in a W2 408 stroker build, rest of the combo is the same....this thing blows my mind each time I take it out!

Gearing for me was the critical ingredient to get to the right result, as it is not just about the WOT converter flash, but street manners as well, and I need a responsive throttle to make that work.