Help with 340 compression + cam change

midnight340 said
I'm hoping that I can include enough info that someone with more experience can help me zero in on my compression.
I built this motor myself quite a few years back

Question 1)
Can someone get me close to likely compression with the following info?
.040 over, decks cleaned up .015 from stock, stock stroke, #2385 TRW pistons, .040” Felpro gaskets, heads cc at 70. Static reads an even 160# all around, carb open, no plugs.

No, it can’t be done without assuming. I don’t like to assume on things like this at all.
Since you built the engine, where do the pistons sit in the cylinder?
Beingbthat you get a 160# reading, I’d say this is good. It is also due to the cams timing events. A larger cam would drop the number and a smaller cam would raise the number.

Perhaps someone that knows there static compression ratio and the cam timing events and tested there cranking psi could chime in.

Question 2)
What should I consider for a different cam choice for mostly street with maybe 15 runs down the strip per year? And mostly to make better use of my very good heads? (head details below in build notes.)

Current camshaft :
Lunati Bracket Master 284 w/ 218”@ .050/.458” lift, 110* installed 5* advanced. (64* overlap, ICA 34* abdc)

Have 750 Eddy on now, but will change to AVS2 soon.
Running 4:10 gears , with 518 Cope built trans. Wt. 3200+/-

Well that sounds like an excellent street combo ready to drive anywhere!
The rest of the build looks really good and I’d bet those heads are done really well. Just how far they will go is another issue.