Re: 66 resto mod help
First I would recommend going with a 351 Windsor. It's easier to find parts and cheaper than the cleveland. You can get the same or more power out of the windsor so no issues there.
When looking at rear ends, you just need to make sure it fits in the car or you're going to have to do some modification. What kind of spring set up is the old car vs yours. The overall width is important as well because you might have to narrow or lengthen it. Just make sure you do a rebuild on the axle and make sure everything is clean and you would be good to go. You might even need to get a new ring and pinion depending on the shape and gear ratio. Make sure all the parts are good if you're thinking about reusing them. The 9" doesn't have shims to do backlash either. There's little cams that you turn on the side of the 3rd member. The 9" is one of the if not the strongest rear end you can get so throw as much power at it as you want as long as you build it properly.
As for the bondo, take it back to the body shop and tell them to fix it. Bondo shouldn't lift/bubble if it was applied correctly.
Going carb or fuel injection depends on your budget, and how complicated you want to make things. Fuel injection has its advantages over carbs but its more expensive, requires a computer and all the wiring, and did I mention is expensive. If this isn't a daily driver you can go carb no problem. You can run a 700 or 750 cfm and be good to go.
95 GT- Sold
09 Hyundai Elantra Touring-new ride.
Looking for the next project car now