2)I had Halls 3 point roll bar in the cabin and got tired of just catching my left hip on it getting into and out of the car. Sold it to LastPushbutton, Bill Gaino. He loves it.
It didn't really occur to me that the profile on either side of the firewall bulkhead was the same in the cabin or in the engine compartment until too late.
I invision being able to cut that bar into left and right halves, welding flanges to it and bolting it to the roof as well. This would let me have my cake and eat it too since I could run the rearward braces as well.
Why can't that all bolt together?
Gary Hall had cautioned me that the gas tank would need to be "slightly modified" to clear the bar. He had built a bar for "Purple Passion" to stiffen the chassis when he turned it into a T top. It shows in one of the Hall Pantera color catalogs but apparently it is the only bar ever built and the fabricator, Bob at Precision Proformance, refuses to build one. Sounds like a tough job?
When I asked Bob at Precision Proformance about it, he said the tank would need a lot of modification to do that.
Why not tie that together with doing a new stainless tank is what I thought?
Anyway, thanks for the links on your bar fabrication. Looks like you have a lot of fun with that? I want minimal fabrication chores to do these days. I've had too many years of having cars apart on a "two week" project?
Vacuum. Interestingly enough, my manifold came with a 3/8 pipe port drilled and threaded into the #8 intake runner.
This is for the vacuum line for the brakes. It makes enough vacuum to operate them.
I've been thinking lately of plumbing the runners together for a vacuum gauge. I think I want to put carb spacers in and plumb the fittings to them? Maybe 1/16npt to keep it minimal OR maybe press in 1/8" steel tubing like a carb would have in it's base for vacuum connections?
Whether or not those -3 lines provide enough vacuum is going to be trial and error. If not, like you said, you can always try a vacuum reservoir hidden somewhere on the firewall?