Its never "Safe" to assume anything im afraid..

Say that chip was for a 7.2:1 lump.. she would have circa 30degrees advance at peak torque with a bar of boost....

POP!!

Test... dont guess.

I also had a car in once, bought a second hand chip of a mate, hit the motorway at 16psi and didnt make the next slip road before he melted THREE pistons...

Brought the car to me for investigation, chip was indeed fine.. very odd
Took the head off and it became immediately apparant why it melted...

The head had 26mm ports!!