UPDATE kind of
I scanned for codes heres what I have a code 41
DTC ( code whatever DTC is ) but 41 , 42 43, 46, 51 52, 54
then live data code 24, 25
It ran great to the ZR1 NCM meet this year . after I drove it about 30 miles and it acted like it wouldn't run or stay running , but seems to be when it get hot. I let it idle in the driveway yesterday and after 10-15 minutes it started dying and running bad . It acts like when a distributor module in an HEI is going bad and messing up when hot.
I think the radiator should be flushed at 40k miles for an 89 not many miles and could be slightly plugged ( yet never overheats ) . any advise it appreciated .