Quote:
Originally Posted by Whalen3186
According to the rule book, once an engine family receives a hp increase, it is never eligible for a hp decrease.
Stock had 7 combinations get a reduction. 3 of those combos had an NHRA hp rating higher than the OEM rating:
1977 Malibu: OEM = 160-170, Old = 275, New = 271
1969 Roadrunner: OEM = 390, Old = 400, New = 395
1986 T'bird OEM = 150, Old = 200, New = 197
How were these eligible for a reduction?
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Many of those above OEM HP ratings were picked by NHRA officials at the time that assigned a "reasonable HP factor" to the combination. Some of these reasonable assignments were as bad as the inflated 1960s numbers some of the manufacturers assigned. There were some combinations were given as much as 75hp without ever being run. Some needed it others were made into filler for the guide instantly.