Wilwood brake install 1975 dart

Owen Diaz said
Would that tire/ rim size fit on any A body and I think the compression ratio is 10-1 or atleast that’s what I was told, it has Keith black flat top pistons in it and bored .40 over I do plan on putting about 2500 into my suspension work cause I did want the car to be able to handle a bit but that might come after the paint job cause the cars in pretty rough shape right now but how’d you get the t56 on there? cause with that I’d definitely be able to cruise on the highway but with the current 904 I have in the car I’m not sure I’d be able to do that

You can fit 275's on the front of your '68 Dart if you run 18" rims. You need about 6" of backspace to do it with the 73+ brakes, other brake packages may change the track width which changes the backspace needed. In the back though you won't be able to run anything that wide. Dusters/Demons/Dart Sports/Barracuda's are about 1" wider in the back than Dart's are. With the stock spring locations about the most you can do is a 255, and even that's a stretch on some of the pre-'70 Darts. If you run a 1/2" spring offset kit you can run 275's. Bigger than that requires a full 3" spring relocation and mini-tub.

The T56 is a TON of work. New crossmember, new transmission tunnel, lots of fabrication. Plus almost $7k the way I did it with a brand new transmission. My T56 install is covered in my build thread, as is most of the stuff I've done to my car. Page 12 pretty much takes care of the T56 install
My "new" '74 Duster- or why I need a project like a hole in the head

Owen Diaz said
Mopar Perf. ''Purple Shaft'' Hydraulic Camshaft Kit
this is the cam I’ve got in it

That one should actually be more streetable than the other one I thought it was. I still don't think that's a good candidate for a daily driver, but for a weekend car that would be manageable. If your compression really is 10:1 though it will be harder to go to a smaller cam if that's something you want to do because 10:1 is pretty much the max for pump gas, and if you go to a smaller cam you could end up with detonation. I have a few degrees of timing pulled on my engine to keep it happy with the 91 octane blends here. There are ways around that (thicker head gaskets being the easiest) but it depends on what your plans are.