I have a 1972 454/270 automatic roadster. It is currently set up bypassing the TCS and set to factory specs. It is timed at 8 degrees and the stock vacuum advance is set up as 0 @ 8 degrees and 20 @ 17 degrees.
In educating myself on the various posts I am starting to learn more about the mapping curves. My question do I need to change my original vacuum can or centrifugal advance weights now that I am running non-ported vs. ported? If so what size vacuum can and weights should I use? I am seeking optimum performance across the range, fuel etc... I am guessing (thinking) this is where some of the changes were made from the 1971 454/365 (285 gross) net to the 1972 454/270 (350 gross) LS5? I also read possibly re-jetting the carb? I was hoping it was possible to pickup some lost hp and torque form the prior year.
Any help would be great!
In educating myself on the various posts I am starting to learn more about the mapping curves. My question do I need to change my original vacuum can or centrifugal advance weights now that I am running non-ported vs. ported? If so what size vacuum can and weights should I use? I am seeking optimum performance across the range, fuel etc... I am guessing (thinking) this is where some of the changes were made from the 1971 454/365 (285 gross) net to the 1972 454/270 (350 gross) LS5? I also read possibly re-jetting the carb? I was hoping it was possible to pickup some lost hp and torque form the prior year.
Any help would be great!
Comment