Thread: What class would a 66 427/425 Biscayne have run in
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Old 06-28-2009, 08:54 PM
ORIGLS6 ORIGLS6 is offline
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Default Re: What class would a 66 427/425 Biscayne have run in
I don't have the NHRA books but here's what I found in the 1969 AHRA Rule Book.

Formula/Showroom Stock Class: B/S B/SA

Hot Rod Division: Single 4 Bbl puts you in Formula 2 and Multiple Carbs/Factory FI/Factory Supercharged bumped you up to Formula 1. The 8.56/8.66 factor puts you in C/HR.

The 1967 AHRA Rule Book shows the following:

Showroom Stock: A/S A/SA

Factory Production: FP/DS

Formula 2 Hot Rod: B/HR

Modified Production: B/MP

Sorry but I don't have a 1966 book.
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