Besides Merlin head flow...

[DiDueColpi]

Kinda sort of Art, My cams rotate backwards but the lotus cams don't look asymmetric so I might get away with it on the custom crank.
Will need to measure the cams some day to see. Hopefully if I retime everthing, line up the cosmos and rub Budda's belly it will all work.
Cheers
Fred

[roverman]

On the surface, the 300" Buick head may appear to be a best value, for those who must have aluminum. Example,pair of D&D prepped heads are for sale, in this forum. Indeed the ported 300 tends to max flow around 196-200 cfm. at .550" lift. I contend there is more to a head than just flow, such as strength/# of bolts per bore/wall thickness/valve train support,chamber size and burn rate, and of course, value. It's good to know, as our aging fleet of Rover and sbb shortblocks, march into the future, there are currently (3) different manufacturers of after market heads. Hopefully, there will be genuine market competition, to aid our quest. Cheers, roverman.

[hoffbug]

I wonder what those heads would flow into a 3.75" tube about 3.5" long?
I bet it isnt 200 CFM..