Id swag a guess of 15 to 20cc on the dome. But your piston looks about .020 in the hole as well.

I did some CCing of the chamber and of the piston. I got about 92cc for the head and 20cc for the piston dome. Looks like the CR works out to about 9.8:1 according to Diamond's calculator. I am somewhat relived that it's not as high I originally thought.

I measured the lobe lift of the cam and it's exactly .350. With a rocker ratio of 1.5:1 I get a valve lift of .525.

I really don't know what I should look for in a new cam. Something with similar lift should be good with the current springs. This is a street driven Bee with a Team G intake and a 750 dominator and large long tube headers. It has 4.88 gears and a 33" tire. The car would pull hard in the higher rpms but was sluggish off the line. Seemed to lack some torque down low. The intake and carb contribute to that. I would like to find a cam that will help with low end torque.

This will open a can of worms, but what dimension did you use for the dome fill down?

Did you figure the deck clearance into the equation to get the 9.8cr, or does that 20cc dome volume figure take that into account?

MP used to have a .533 lift hyd cam.....I wouldn't be surprised if that's what you have.

If you're good with a degree wheel you could plot it out and see exactly what it was.

What I did for the piston measurement was.
Put the piston in until the dome was level with the deck. Measured the distance from flat portion of the piston to deck. (.349)
I used the 4.28 bore and .349 to get a theoretical flat top volume. With the piston in the same place I CCed it. I subtracted the cc fill from the theoretical volume. After your question it guess I should have added the .021 to the .349.

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I hadn't seen the screenshot of the calculator prior to my previous post.

It looks like it's correct there.

I ran the numbers before looking at the data on the screenshot and got 9.75.

Were you/are you really going to use that big of a gasket?

The other piece of the puzzle for cam selection would be knowing what the stall speed was.

Assuming the converter isn't totally wrong for the application, I'd be looking at something like the middle Howard's Rattler cam for that thing if you're looking to improve the low end a bit...... Although its still not going to be great with that intake and carb on it.

It had a .040 gasket on it when I took it apart. The big gasket is to bring the CR down a bit. It would detonate with 91 sometimes.The stall speed is around 2800.

With that low of a stall speed, you probably have the worst choice for an intake manifold/carb combo.

There are probably at least 10 intakes you could pick up used that would work way better in that application........ Along with a plain Jane holley 750dp.

when I ran my 452 on the dyno I used my old m1, the last pull we changed the intake to the team G and LOST 75 HP.
Get that POS of your motor, run it then make changes.

I know. I've wanted to change the carb and intake since I bought the car. Didn't have the time or money to do it until now. Not many used mopar parts up here. Shipping used stuff from the south is pricey and gets close to new cost. If I plan to get new stuff I want it to work on the 512 also. I know the cam won't work but I just want to get the car running again. From what I've searched would something in the 230@.050, .500 lift and a lsa of 108 work ok?

No bigger than that, but it still won't be a cure for the horrible mismatch between the induction and the converter.

Did you verify the cam timing and where it is installed currently as far as the lobe center(ILSA) on the intake lobe? If not that is worth doing, all the BB Mopars I've work on and tested hated the cams straight up or 2 degree retarded
Your car with those gears should be a lot more perky than your describing in low gear That makes me think the cam is not degreed in properly
Let us know what you decide and find out Good luck

Thanks for all of the help! I didn't think to check the cam before taking it out. I did take a picture of the timing gear before removing it. I haven't looked it up to see what degree slot it was on. I think it was too big for this motor. The best run at the track was 13.00@ 108 and 2.19 in the 60'. Idle speed was about 1100 rpm.

Looks like there are a few companies that make a cam that would fit the bill. I would like to get feedback on what others are using.