[grumpyvette]

http://www.carcraft.com/techarticles/116_0406_cylinder_leakdown_tester/photo_10.html

http://www.carcraft.com/techarticles/116_0406_cylinder_leakdown_tester/index.html

http://forum.grumpysperformance.com/viewtopic.php?f=62&t=881&p=8362&hilit=leakdown#p8362

these links (ABOVE) explains the basics

most good shops need and use one, summit and jegs sell them

http://store.summitracing.com/partd...&N=700+4294854847+4294854846+115&autoview=sku

 

[BonneRisque]

Good Info