Looks like the EQ heads are killer for the money. Also looks like if one was to spend time porting them, focus on the exhaust runners......

i should note that the 'stock" flow numbers on the eq heads, had a non tulip exhaust valve, and intake valve without a 30* backcut . Ported numbers had a tulip ferrea ex valve, and back cut intake. The "stock" numbers would have been a tad better with a tulip style ex valve. No pipe on the exhaust. The intake ports are basically untouched, the exhaust had just a little blend at the seat. Most of the work was in the chambers.

Ive seen some numbers on some fully ported versions of them, with some big cfm numbers .

Well refreshing heads and my head guy says there is a cheap and easy 30 cfm to be had, so I am going to clean these up for now, not fully working them but since I need to do valve job why not pick up a few HP as merlins leave a lot to be desired... 30 CFM or more has to gain something...

duration yes, lift questionable, cams are .600

Ported 345's almost the same as stock Merlin 320's?

Will be a good before and after comparison.
I was looking at the comparison that MT posted. Not especially interested in the #'s, more interested in the comparison using the same test equipment. Looks like the Darts were knocked in the dicl< after porting.