[25stevem]

Can you post up a dyno sheet please?

The fact that you on,y made 551 hp tells me that your flat out using only using some 275 cfm out of that 340 that the heads can flow.

Your use of the 750 Carb took 25 to 30 hp off of what the motor could have made with something like a 950 cfm Carb.

I also think that your pick of Intake Manifold is a bit of a restriction and needs some Plenum work and at least a 1/2" spacer.

It would have been nice to know how much vacuum you where pulling below the Carb at the rpm of peak hp, I bet it was over 1.5 hg which is a indicator of a good size restriction.

If you where looking for big power above 5800 rpm with the duration of that Cam it's not going to happen, this all being said I bet the motor as is will be a very nice cruiser and highway stormer!

I would be very happy to just slap on your throttle body and enjoy the motor as is because your not hooking up on the street even the 550 hp your making now without sinking a very likely 4K more into the chassis and tires on the car.