I would go for the 373 gear. I had a 410 in my car and would have to shift as soon as I started. The extra torque I gained was wasted because id just spin the tires. Most times i would start out in 2nd. After that I went with 373 and love them. Oh yeah I would cruise 70 mph at like 2700 from what I can remember.
Hope this helps
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1969 Mach 1 351C with a c6(for now)
Sold 92 Rag Top GT
Procharged & intercooled DSS 331 LC
Holley Systemax 2 Intake, Edelbrock RPM Heads,E 303 ,blow thru air meter, race bypass, 42 pph injectors,65mm tb,1.7 rr, Mac long tube headers w/off road H pipe, Force 2 catback, TKO,Pro 5.0, K&N, Alum DS,3 core radiator, subframe connectors,3.73`s, Nitto DR`s and a Heavy Foot.
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