problem with boost

[Darkapollo]

Ok so i have my manual boost controller set to about 13psi, so that when it spikes it doesnt hit cut off. anyway, today on the way home from the races i noticed it will go full 15psi and then drop off almost instantly to 7 and hover between 7 and 10. i know the stock gauge isnt accurate but you can actually feel and hear the engine lose power when the boost drops.
and i know its not hitting cutout because the engine still pulls hard and accelerates. its hit boost cut and i know its not doing it now.

[87shelbyt2]

Check your intercooler hoses for leaks. Check vac lines for leaks. Make sure all clamps are tight, and zip tie the vac line connections.

[Darkapollo]

thanks, im changing out the intercooler today anyway so ill 3x over the connections.