Help...!!!

[ByronRACE]

So you want a smooth idle like a production car in a Cobra?

You'll have more bottom-end grunt than the tires can connect regardless. Personally, I'd go with more duration, a more agressive idle lope, and shift the power band up 500-1500rpm so you can get some power out of it.

216/224 at .050 is a tiny cam. Sleepy really. I bet the power peaks by 4800rpm. Yes it'll have a smoother idle. Yes, it'll make explosive low-end torque in a narrower band. But, it'll all be over well before the rpm capabilities of the engine have even been explored.

I'd be looking for something more along the lines of a 230/240 at .050 and would recommend running various cam choices through a simulator before you decide.

My little 435" has a 242/256 at .050 and should peak by 6300 in a NA application. With 25 more cubic inches, I bet it would peak around 6K...which is closer to what I'd shoot for if you want to get power out of it.

[Eliems]

So they pulled the pan to check the bearings on the crank (at my insistance after assuring me the metals from the 4 lobes would be contained in the oil filter) and sure enough all the bearings are toast!

Back to the machine shop (under warrantee) for a complete rebuild! This is two months now since my Cobra was in my garage.

On the bright side I should get a better motor and no worries about the metal sludge. The machine shop can install the roller cam and no break-in!

Patience!