Thank you guys....I have discovered tonight after a lot of research that the parts house sold me the wrong ICM....I took out black and they sold me grey...not the same and not compatible with this year of 460 EFI....iam thinking that that new PCM really balked with the non=compatible grey ICM. the ICM lets the computer control the dist dwell in black...in grey it is set and doesn't change....of course the timing is also affected.
Iam gonna try in the AM to find a black one...on a truck forum it was mentioned to go for a 95 mustang 5.0 which has the black ICM .
All input appreciated. Iam going to stay here till I get this thing running better....don't want to be towed....have insurance but its a hassle...............