How far to rev this 273 commando build

stroker402 said
Ron at isky told me he built the cam with 2* built in, on a 108 lsa. I installed the cam with dots together facing each other on the sprockets. . Seems to working great !
I have a low first gear 833 trans with 355 gears in my barracuda . I tried a 3.91 gear last summer and did not see any improvements just had to shift sooner and more frequent . put the 3.55 back in .

With the 3.09 low, and on the street,I found the same thing 3.09x3.55=10.97 and 2.66x4.11=10.93; making them take off equally in first gear.
Where things change is on and after the 1-2 shift. On the street with a torquey engine, I found 4 gears didn't really benefit from deep rear gears, and I tried a lot of them, from 5.38s on down to 3.91s. Also tried less than 3.55s which turned out to be the best all-round with my GVOD, so they are stayin.
But I totally agree with; "I tried a 3.91 gear last summer and did not see any improvements just had to shift sooner and more frequent . put the 3.55 back in"