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I consider the 1970 model year as a carryover from the 60s. Performance dropped yearly from 1971 on.
I started driving in 81 and my second car was a 76 Trans Am with a 455 4-speed. Stock it had 7.5:1 compression and made only 200 HP but swapping 400 heads alone raised the compression to 9.5:1. Add a 72 or earlier intake, cam, headers and dual exhaust and you were right back to 1970 performance levels. Those Pontiac 400 and 455 engines were pretty easy to hop up and available through 79. Then the bottom really fell out
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"the trouble with our liberal friends is not that they're ignorant; it's just that they know so much that isn't so.”
Ronald Reagan - |