Ok, I now officially have a car for this. An 89XR7 5-speed with no title and missing the supercharger that I can get for free. I also have 3 superchargers sitting in my garage, so that's no big deal.
You are correct that the head gasket is the biggest reliability issue with the SC. I suppose with some MLS gaskets and head studs, as well as going through and replacing all the bearings in the bottom end, it could be reliable. They do have other issues though, particularly ignition system issues, but something like that wouldn't fail from beating on it, it would just be chance.
Paul, I have seen pics of your car. I know what you mean on the $500 proof, but you really don't need to prove it to anyone, as long as you know what you spent the money on. As for the PBRs, that would be something I would definitely want to swap onto a road race car. Like I said, they can be had at any junkyard off of any newer mustang, so I would just do it that way, instead of buying new ones, this way you aren't investing much money into them.
What kind of rad do you use to keep your 351 cool in your race car? The summit one is a pretty large and pretty thick radiator, looks just as big as the griffin.
I'm also thinking now maybe you'd be better off to run a fuel injected 5.0 in the SC chassis. All you would need is the engine and harness out of a 5.0 car and this way you wouldn't need to worry about re-doing the fuel system. Plus the fuel injection would be more reliable over an endurance race than a carb. So much to think about.
In any event, I'm definitely going to do the CT race in July with an 89XR7 5-speed. I already have one other driver who said he's up for it, so now I need 2 more. If anyone is interested, let me know. Also any input into setting up the car for racing would be appreciated.
-91 Cougar LS, coming soon, complete overhaul
with a 427" Windsor.
-90 XR7 5-speed black on black w/sunroof, MP2, coated rotors, double intercooler, 15%OD, ported heads, comp stage 1 cam, 85mm TB, 90MM LMAF, 80# injectors, and ported big valve heads
-98 Mark VIII LSC, Procharger P600b, TR3650 swap and 3.73s.
-90 SC Automatic rustbucket winter beater
-97 Tbird Sport 4.6 Nice weather daily driver
-"Your buddy Mike is INSANE!" -ClintD's dad