Re: Chassis shop
You could run the 1970 390 in your 69 car in SS/GT, or a 401. The 70 engine is rated more horsepower than the 69. The engine I race is a NHRA legal 69 390 ,as per the blueprint specs..I am happy when I run 3 to 4 tenths under the index, and I am constantly working to go quicker.
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