408/ 904 trans
I went from a W2 head 363 with 450 torque with 4.88s my 60 foots were 1.49- 1.50 ( on throttle stop) to a R3 block Indy 360-1 head 408 502 torque two years ago I was reving well over 7 grand at the stripe I went to a 4.10 gear and my 60 foots are the same as with the 4.88s because of the 52 more pounds of torque 1.49-1.50 I recently went to a 4.30 gear for more stripe rpm ( 6200) picked a up a little but 60 foots are the same i tried a low first gear set In my 904 years ago and saw no difference but that's my combo yours could be different .. ProTrans is top notch and long time Mopar racers
I went from a W2 head 363 with 450 torque with 4.88s my 60 foots were 1.49- 1.50 ( on throttle stop) to a R3 block Indy 360-1 head 408 502 torque two years ago I was reving well over 7 grand at the stripe I went to a 4.10 gear and my 60 foots are the same as with the 4.88s because of the 52 more pounds of torque 1.49-1.50 I recently went to a 4.30 gear for more stripe rpm ( 6200) picked a up a little but 60 foots are the same i tried a low first gear set In my 904 years ago and saw no difference but that's my combo yours could be different .. ProTrans is top notch and long time Mopar racers
