RC, I gave your list a little make over my style
You have some interesting choices but I'm surprised you don't have Deathdream (1972) on your list.
1. A Clockwork Orange (1971)
2. Jaws (1975)
3. The Exorcist (1973)
4. Dawn of the Dead (1978)
5. Halloween (1978)
6. The Devils (1971)
7. Deliverance (1972)
8. Deep Red (1975)
9. Duel (1971 TV Movie)
10. Nosferatu the Vampyre (1979)
11. The Texas Chain Saw Massacre (1974)
12. Rabid Dogs (1974)
13. Straw Dogs (1971)
14. Invasion of the Body Snatchers (1978)
15. House (1977)
16. Frenzy (1972)
17. Theater of Blood (1973)
18. Don't Look Now (1973)
19. The Bird with the Crystal Plumage (1970)
20. Martin (1977)
21. The Abominable Dr. Phibes (1971)
22. Westworld (1973)
23. Zombie (1979)
24. The Stepford Wives (1975)
25. Sisters (1972)
26. The Other (1972)
27. The Legend of Hell House (1973)
28. Race with the Devil (1975)
29. When a Stranger Calls (1979)
30. Burnt Offerings (1976)
31. Shivers (1975)
32. The Vampire Lovers (1970)
33. Frankenstein and the Monster from Hell (1974)
34. Deranged: Confessions of a Necrophile (1974)
35. Lisa and the Devil (1973)
36. Let's Scare Jessica to Death (1971)
37. Hatchet for the Honeymoon (1970)
38. The Hills Have Eyes (1977)
39. Alucarda (1977)
40. Tourist Trap (1979)
41. The Amityville Horror (1979)
42. The Car (1977)
43. Blood for Dracula (1974) (Andy Warhol's Dracula)
44. Dracula (1974 TV Movie)
45. Willard (1971)
46. Tombs of the Blind Dead (1972)
47. The Last House on the Left (1972)
48. I Drink Your Blood (1970)
49. Piranha (1978)
50. Flesh for Frankenstein (1973) (Andy Warhol's Frankenstein)
51. The Devil's Nightmare (1971)
52. Criminally Insane (1975)
53. The Death Wheelers (1973) (Psychomania)
54. Sugar Hill (1974)
55. Blacula (1972)
56. The Shiver of the Vampires (1971)
57. Shock Waves (1977)
58. Eaten Alive (1976)
59. Abby (1974)
60. The Wizard of Gore (1970)
61. The Werewolf Versus the Vampire Woman (1971)
62. The Toolbox Murders (1978)
63. Equinox (1970)
64. Psychic Killer (1975)
65. Don't Look in the Basement (1973)
66. Squirm (1976)
67. Impulse (1974)
68. The Ghost Galleon (1974)
69. Beyond the Door (1974)
70. The Incredible Melting Man (1977)
71. Blood Freak (1972)
72. Shriek of the Mutilated (1974)
73. The Incredible 2-Headed Transplant (1971)
74. Dracula vs. Frankenstein (1971)
75. Venus Flytrap (1970) (The Revenge of Doctor X)