The 71 LT1 was a completely different animal. 9.3:1 compared to 11:1 from 70 with a much smaller solid cam. Plus a lot of people back then "said" they had an LT1. lol
This particular LT1 was purchased by owned by a rich kid in 1974 was an original low mileage vette (LT1 hood and all). He was pissed after my ragged Duster beat him up.
Soon after he blew up the LT1 and got another "built" 350 put together by a local
speed shop. I did not have a chance to race it then because that motor was blown
up as well. The 71 LT1 had better flowing heads than the 70 it was "rated'" at 330hp.
IMO 350's where very over rated back in the day, and I do not trust GM and their
magazine propaganda machine with ringers sent as press cars.
