If I had your combo, and was stuck with the 3.55/auto trans,I would hang myself. Well, ok that might be excessive, but then you will need a lil more TC, if you want to get away briskly.If you want to show well at 30 mph, you will need a 3400.This is cuz your gearing with 3.55s is all wrong at 30mpg.But by 36mph, she will jump.Unfortunately, she will have to pull all the way to 50 mph before the shift.
But if you just want to cruise around and have fun, then 3.55s are hard to beat.
Just don't be picking on 360 A's, at under 36mph, or any teeners with 4.10s!
lol.
Also, with 3.55s, you will have to lower the Scr I described above. With the engine more heavily loaded now; 9.99 will likely be a half point too much. So again wait until the final Scr numbers are in.
You may have to go to a bigger cam to lose some cylinder pressure, to stay out of detonation.And that would be a shame.Cuz that would lead to a higher operating range, which leads to a wider operating powerband requirement or a higher TC or or or back to the 4.10s.Of course with the higher TC and extra power the skinny minneys out back won't stick anymore, and your 60fts will suck.Actually all of first gear will go up in smoke;So then you have to fix that, which usually means mini-tubs, a narrowed rear, relocated springs, and bigger meats with new wheels.
Hyup the joys of too big a cam..... binderdundat !! Maybe hanging wasn't that far off.........lol
One good thing about the bigger cam is that now it will have an idle attitude, and you get to deal with that whole tuning thing.
And the the teener manifolds may warp and crack, and you get to start over.I mean they were designed for what?, 195hp in 78.......
