Need input on Steering Gear Ratio

[May70]

I am putting an ls in my truck and upgrading to power steering BUT keeping the big original wheel for non PS.

Im reading/told conflicting info on the ratio I should go with. Quick ~3 turn 15:1 vs standard ~4 turn 18:1.

Im going to purchase a red head gear. They recommend the 3 turn and said only go with the 4 turn in power steering applications for offroad use with 36" plus tires.

Ive read some threads about finicky steering with a big wheel and PS upgrade.

I think im going to go with the three turn if anyone can confirm success with a big wheel. Thanks