1970 GTX 440 numbers matching car... After running for a while.. From neutral, and at idle speed..it gives me a hard time to shift into 1st gear...After a while it goes in but not very easily....It's easier to downshift from 4th to 3rd to 2nd....and then at a slight roll into 1st. Gear oil has Lucas Oil additive and the clutch linkage has been adjusted and lubriated.
Any Ideas?