In Case You Missed It
So Long, Lead
As the prospect of leaded aviation fuels fades into the sunset, the search is on for a replacement, and you may not like where things are headed. By Marc Cook.
Air Power
The art of porting cylinder heads, whether by hand or by CNC machine, is a valuable part of blueprinting detailed engine builds or overhauls, and surprisingly subtle changes can determine how efficiently the engine will breathe.