Help ID this set of pedals if they are from Slant, 318 or HD style like 340 and BB darts

AJ/FormS said
There are TWO pedal ratios; one for the slanty's 9.5" clutch and another for everything else.
If you are intending to use a HD B&B 3-finger clutch, then you need the V8 hi-ratio pedals. The higher ratio makes it easier on your left leg. And you need the HD version which has the matched O/C spring and it's support bracket. And because of the work this unit sees, it has bushings (sometimes called bearings) so that the pivots won't wear out prematurely.

If you are intending to use a diaphragm clutch,even a HD one, this is less important. However, I still recommend the V8 pedals, because they make the clutch easier to modulate.

BTW; the O/C spring also helps to keep the pedal down against the spring-pressure of the clutch. This is helpful if you spend time at stoplights and such. But the diaphragm clutches have less static pressure, so this spring sometimes ends up keeping the pedal on the floor. This is bad news at WOT, so you should consider a rev-limiter.

Was planning on using a stockish type diaphragm clutch but undecided. Want to be able to use these pedals as some of the prices out there crazy high for HD sets and I can’t find any (unless someone want to message me) but eBay is usually a bit above the rest.
408 planned with iron heads but I may still just put a stock 360 in it with a nice cam performer rpm or air gap and a set of headers and 2 1/4-2 1/2” exhaust. Never know what I might do engine wise in future so 2.5 might be better for the longer picture.

I weighed her at the truck scales by an d co worker at Dmv truck unit division and they had their scales calibrated recently by the Dept of Transportation and another friend confirmed his car was spot on from his racing scales and my stripper 72 duster with no options but power steering and 1/2 tank of gas and subtracted my weight she barely clicked 2900. Assuming if I’m off on the fuel or it if had 2 gallon it would be 2875ish. I can’t believe how much these rubber floor striper dusters are. I have the build sheet and window sticker and she has nothing for option but power steering and I found the original owner it was a young married women she was 24 and it was her first new car in 1971 she purchased it in the fall as my car was built early first week of sept for the 72 model year. She wanted the AC but wasn’t able to afford so she feel in love with the petty looking blue aka basin street blue. One of the shortest trim tags ever, no trim nothing. She kept the car for 46 years and then It went to another lady, her friend who kept it for 2 years as a car to go to shows and only put 900 miles per dmv records and then it went to a state trooper friend of mine who was going to make it as he said his “honnigan” car and put an LS in it. Soooo happy he ended finding a Camaro to chop up and he let this sit outside in shady area for 2 years and i Ended up with her. Got her fully tuned, cleaned and running great, redid the baby 9” no power drums and have been daily driving it since. If it was auto on the floor I may just leave her I just hate column cranker but it was my first car after a 3.5 year “burned out” hiatus and I wanted a duster in a cool color. Even if I found a console and shifter the buckets alone are super expensive