5.3 into 346, or 347?
#11
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yea you will need a larger stall, depending on the duration of the cam, you could prolly get away with a 3k or 3200. my old LT1's cam card called for a 3500 stall, so you may call up comp cams and see what the reccommend, all the variables matter, weight of the car, purpose of the car rear gear, yadayada. and also, big cams like shorter rear gears.
im going to use the 32-3600 stall ive always used, but i have to change my rear gear back to 3.42 from 3.90. for the turbos, they like load.
im sure some experts will chime in with more accurate info.