The cam was Hughes 3642 flat solid, .628/.633" with 1 .6 rockers, edelbrock heads ported by Curtis Boggs, 10.8-1 compression. Best runs were 6.57, in street trim it ran 6.70 at 3260#, all on pump 93.
Now there is some crazy bulls eye, been there done that info that should really help.
I like how you posted what it likes with the cam you have in there. (6400 rpms) Would you have head flow numbers?
