BVoelzke
Well-Known Member
I run the same with a 904 with out a low gear set . When I went from my stock stroke 367 to my 408 I had to take gear out of the car ( 4.88 to 4.10 then 4.30.s) because I had to much rpm at the stripe due to the 52 more pounds of torque . I tried a low first gear set in my 904 years ago with my 367 and saw no difference. It could be because my converter is pretty evenly matched to my combo .My bro in law runs a 408 with low gear set, 60 foot in the mid 1.40s, about 6500 at the stripe with 4.30 gears.