What year and what application? IIRC 67 GTX & R/Ts were 375 HP. Because my 60 300F 413 with 2-4bbls was 370 HP and would mess up a friends mind in his new 67 GTX. I was also giving him over 500 pounds.
Bryce


Every electronic device is manufactured with smoke stored deep inside... only a true genius can find a way to set it free. The most terrifying words in the English language are: "I'm from the government and I am here to help!"