4th May 2014, 13:13

My favorite Chevrolet motors were the 283 and 327, followed by the 350. The big blocks today have no lead fuel and 93 octane max to operate. I spend an added 10 bucks for ZDDP to add to the oil so as to not lose a cam. I wonder if anyone with a 421 Pontiac can share my similar viewpoint on this? In the past we ran Super Shell and Sunoco 260 with leaded fuel, and used to be able to fuel at the airport long ago as well. It's bit much, paying 4.20 a gallon on 7-8 MPG, and it's the gas quality and then ethanol as well. I add Startron to prevent ethanol breakup. Today it's not so bad to run a small block like a 327 and not have detonation woes. Someone on here has minor worries about a quart of oil. Try dealing with fuel problems.

5th May 2014, 23:07

The comment wasn't directed to classics with minimal use of 2500 miles per year.

It was directed towards cars that were daily driven for every day use that accumulate 12-15,000 miles per year.