Totally Dissapointed!!!!!

here they are.
Comp Cam Part # 20-223-3
Gross valve lift intake .477
Gross valve lift exhaust .480
Duration @.006 tappet lift 268 intake 280 exhaust

Duration @ .050 224 int 230 ex
lobe lift .3180 int .3200 ex
lobe separation 110.0

By this info what would you recommend?

The advice on having the leak down done is good and compression check also. I ask the shop on thursday when i had the car up there to check plugs and do a comp ck but they didn't think it was necessary. I even took them a set of new plugs. They checked one and said it was ok. As you have noticed i haven't mention any shop name YET but could happen. There is another shop in town that the owner use to work for the guy that built my motor. I've talked with him and said he gets the blame for failed engines he never worked on. I've also heard of and seen good engines from the guy that built mine. The jury is still out and before it's over i'll spend a lot more getting it right. Still taking advice. Hah!!! good and bad.

Now for more info. The carb has been changed to a new one and the ports are clean. No oil.

I have a 600 cfm carb if i need to drop down.

If my stock ignition is weak then what's the fix?

Someone mentioned washed rings. If so what's the fix on that?

So that i don't get scammed what is the procedure for the leakdown test?

When you speak of zero deck on the pistons you mean the pistons should come up to the top of the block on the compression stroke?

Whats the formula for figuring compression ration vs psi compression??