Quote:
Originally Posted by 94cobra69ss396
No need for anything more than that. I'm not sure what the compression was on the original engine but my guess would be somewhere around 9:1. Glenn probably would have an idea.
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1970 had 11 to 1 compression. Same as my 70 T-bird. Stock HP is 360 with 485 ft lbs of torque.
My 429 runs great on 91 octane. The bigger the cam the better the 11.1 works.
A cam with .050 duration of about 235 degrees is a good start for the 429. Try to keep the lift down for a street engine. Guide wear is bad with a very high lift cam.