I have an 88 forumla Firebird its got a TPI 350 with a 5 speed.
When its running everything seems normal nothing out of the ordinary. When i put an load on the engine weather it be i just rev it up or try to drive through a red light like a grandma, or take a corner this glitch happens. I thought maybe it was the battery terminals so i cleaned them. Didnt fix it so i need some help.

Things that happen when the glitch comes
Voltage gauge drives to right around 11 or 12
oil pressure gauge drops to about 10 or 15 pounds when normaly at 50
Radio shuts off and then turns right back on speakers and subwoofer pop and sputter

The engine it self doesnt sputter or die even when WOT or anywere inbetween. The gauges go right back to normal after the car settles like there are no G-Forces.

So any help on this would be great this is my daily driver so kinda need it quick

 

check your body ground first.

 

That would be the wire from the negetive terminal to the car body i would assume?

 

Also from the back of the passenger side head, to the firewall.

 

Well things seem back to normal. Thanks for the help

 

Have the alt tested then check grounds

Wiring issues dont magically fix themselves. Low volage on the gauge suggests charging/battery issues