Originally Posted By dvw
The heads are not installed. What it appears to me is the intake lobe is actually 287@.050, not 285. The change occurs at the intake opening point. It's 2 degrees earlier than the card calls out. This then moves the int C/L to 110.5. The exh open/close are at the correct 112 C/L giving a 111.25 LCA. It also appears the exh lobe is assemetrical rendering the measurement at max lift for C/L useless .
Doug

That is why i figure the best way is to check both sides of the intake lobe at .050. The .050 readings are really all you can go by since thats all that is on the card.


8..603 156 mph best, 2905 lbs 549, indy 572-13, alky