Engine Cam card timing events ?

[Steel1]

Trying to chase down an issue with my 93GT 393w .
I have a Bullet cam an the cam card reads @ .050 intake valve opens 12.5* and closed 44.5*
I know it's probably a stupid question but is that 12.5* BTD or ATD ?

I've been dealing with some sort of timing issue for a couple of weeks now and just trying to narrow
down the cause.

 

[General karthief]

Was the cam degreed when installed?
degree'd
degreeed
degree'ed
Crap, where's a grandkid, can't find spell check

 

[Steel1]

Was the cam degreed when installed?
degree'd
degreeed
degree'ed
Crap, where's a grandkid, can't find spell check

I
Installed straight up.
This build was done over a year ago and was running great. I installed new ecu and was in the process of tuning when ran into some issues. Just trying to determine if it's mechanical or ecu/tune related.

 

[Steel1]

Got my answer...it's before TDC.
So all seems well mechanically, time to do some more tuning research!

 

[General karthief]

Ok, this is just me thinking, .50 at 12.5° btdc that would mean 44.5° would be atdc, correct?
just picturing this in my cartoon mind.

 

[Steel1]

Ok, this is just me thinking, .50 at 12.5° btdc that would mean 44.5° would be atdc, correct?
just picturing this in my cartoon mind.

Ding..Ding..Ding..we have a winner! Yep you are correct

 

[General karthief]

I will take my winnings in gt40 tubular intakes
or cookies.