I just came in from removing the head on my '91 Daytona (2.5 T1 w/added factory intercooler). When I bought the car it had melted #3, which was why it was being sold. So I plop a fresh .020 over short block in it, clean up the head, and put it all back together. I drove it for some time just straight stock, then a few months later added the intercooler. That helped with some ping and helped stabilize boost. Barely did this thing make 7psi. A couple months after installing the cooler it burned #3 again.
So anyhow, I thought I had read somewhere about #3 being a problem for these cars. Ideas? I did not change the injectors....and don't recall if they went back in the same holes they came out of. I would tend to believe I did put them back the same way (I'm just like that). So maybe a set of injectors is in order? What do you guys have to say?