350/255HP Help please

[Alan Roehrich]

Originally Posted by Adger Smith

He said "Cold" Leak. That never has told me anything. I don't race Cold Engines... Could have bad ex seats and when it gets hot they go away..... Just Saying...

Agreed. Cold leak down is useless. Honestly, on these engines, you need to be using a Dwyer gauge, or something, to test blow by on the dyno. Leakdown, even hot, can be misleading. Measuring blow by eliminates all of that.