<VV> New Corvair Owner-Tire pressure and Octane Question

[KBOOSMAN at nc.rr.com]

Hi all...I'm a newbie owner of a 1964 Monza 700 Sedan and I absolutely 
love it. But, since I know very little about Corvairs (yet) I have a 
question that I hope is not too "stupid". I know what the manual that 
came with the car says about the tire pressure being lower in the 
front than in the back (while I can't quote the exact numbers right 
now it's something like 12 psi in front and 26 psi in back) but does 
that hold true for the newer radial tires? I forgot to ask the person 
that I bought it from. Also, while the books says that the car will 
run well on "Regular" gas, was the regular gas in 1964 a higher octane 
than now? My owner's manual doesn't list an actual octane number so 
I'm not sure what to use. I have been using Regular (87 octane) and it 
seems to be doing fine, but then I've only had it 10 days.

Thank you,
Karin
1964 Monza 700 Sedan