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**LostMy65** · 05-09-2021, 12:46 AM

Sorry, I don't remember, but I think it's for a basic 350.
I guess a 283 would need to be higher in the rpm's and big block could be lower. I guess the chart is good to calculate tire size to gears to rpm. (but without overdrive)

05-09-2021, 12:46 AM	#12
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,507	Re: Advice needed Sorry, I don't remember, but I think it's for a basic 350. I guess a 283 would need to be higher in the rpm's and big block could be lower. I guess the chart is good to calculate tire size to gears to rpm. (but without overdrive) __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035