Thanks to everybody for there opinion. The specs on the Bull dog cam are as follows.
Duration 254 Intake, 264 Exhaust
Duration @.50 212 Intake, 218 Exhaust .435 Valve lift.
I got these from Delta when I ordered my camshaft on Thursday and it shipped on Friday. Now that's service!
I have been told by several well know inliners that there is less than 4 HP difference between a 261 (6850) head and a 848 head built the same on the same short block.
37Chevy
