This past winter put a 305 with a 2 speed PG, As there was a six in it originally it has 355 gears in it. I like to cruise around 60mph but tach is running around 2600rpm, at 50mph tach is 2200rpm, if I went to a 3:36 how much rpms could I drop at 60mph? I was thinking of 3:08's but with only a 2 speed trans think it might me to low on the get go. Any suggestions would help. thanks brent
Maybe "Carbuff" is comparing it to newer "daily" driver w/OD trans. My 2010 Suburban w/3.08's & 6 spd. O/D cruises at 1650 RPM at 70 MPH. 64 Catalina w/ 2.67's & a turbo 350 trans. is turning around 2500 at same speed. Catalina is more "fun' to drive when it "squaks" the tires in 2nd. on acelleration, [ the burb won't ]
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Some times I wake up GRUMPY, but today I let her sleep in !!!!!!!!BLACKSTOCK Ont.
Yes guess we are so used to the new vehicles idling at 70mph that now it seems that the older cars sound like the engine is overreving, I like ur setup Pete, I could handle 2500rpm at 70mph. I have a 700R4 casing in the garage, maybe that would work and leave the 3:55"s in. Any thoughts?
Catalina is more "fun' to drive when it "squaks" the tires in 2nd. on acelleration, [ the burb won't ]
Whats wrong with the Suburban Mine fries tires.
Ray, it will on take off,goes up in smoke but won't spin them on shifting into 2nd. The Catalina will do about 20' in 2nd gear & used to 'chirp" into 3rd. with the 3:42's out back!!!! I'm amazed the old Cat. will spin em with the 2"67's just has "bags" of torque & tranny is "beefed" a little bit!!!
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Some times I wake up GRUMPY, but today I let her sleep in !!!!!!!!BLACKSTOCK Ont.
Catalina is more "fun' to drive when it "squaks" the tires in 2nd. on acelleration, [ the burb won't ]
Whats wrong with the Suburban Mine fries tires.
Ray, it will on take off,goes up in smoke but won't spin them on shifting into 2nd. The Catalina will do about 20' in 2nd gear & used to 'chirp" into 3rd. with the 3:42's out back!!!! I'm amazed the old Cat. will spin em with the 2"67's just has "bags" of torque & tranny is "beefed" a little bit!!!
THAT's American PONTIAC bottom end torque !!!
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later...rog
AADD supporting member !!
I'm a collector...not a builder!!Located in sunny central Saskatchewan at the lakehead!