They might work fine for what your doing then with that much motor. Sounds as if you might benefit from a little less torque and more HP.
I read a report last year or year before in Mopar Muscle (I think) where they tested several different headers. The 1-5/8 did have more low end torque than...
Congradulations!!! Great to see you found that special someone. We're working on our 12th. If we're both here I'm sure we'll make it to 30 and then some. "Racin Tracy" and Cathy Lambeth :D
Benld, IL (yeah it's spelled right) Halfway between St. Louis, MO and Springfield, IL. right off of interstate 66 and 55. "In the middle of the corfields".
Tracy (500hpfish)
Working on our 68 Cuda. Hopefully have it together to run some before the snow flies this winter. My wifes been on to me to get it running so I guess I better get with it or she might leave me and take it with her. That wouldn't be cool at all. She's a good cook and well the cars a mopar, nuf...
As far as converting to electronic ignition goes that's easy. Just swap out the distributor (watch closely when you remove the old distributor and install the new one with the rotor pointing the exact same direction) and mount the electronic ignition box and run the cable that comes with the kit...