Well, don't know what higher than "normal" is. What makes you say that? Really high? Can't go too high and still use the tubular cross member, right? Fits inside frame or top or bottom. Depending on what ends you have.
Anyway I will list a few that you probably already know.
1. The pinion angle. You have a said that will be checked.
2. Cooling fan center to radiator center. Radiator hose interference with ?
3. Hood clearance to air cleaner.
4. All Chevy V8's have a built-in 4 deg down angle when carb is level. Carb/intake must be level.
5. Trans too close to floor/firewall.
6. Distributor clearance.
7. Header/exhaust manifold clearance to body/steering/firewall/frame/inner fenders.
I de-riveted the rear cross member, which left the rivet holes in cross member and in frame so that I could bolt it back on if needed. Don't worry about taking it out that way. You are "reinforcing"/"replacing " it with the two new cross members. No big deal if you need to take it out. The de-rivet is not easy but worth the effort. I had the motor out, tires off and front clip off and had access to sit and drill and grind. One at a time. Cutting it off is not the way to go. Leaving it in when you have the chance to remove is probably a bad idea. Your future plans, if you ever do them (348), will not need this piece. Take it out now, properly (de-rivet) 1/2 day or a week, whatever.
You are getting some good feedback. Some is from AD guys. Mine is from TF experience. You have a TF.
