05-10-2021, 01:22 AM
Kinda sounds like you've got some boss parts on top of a standard block. I had a rust bucket of a 72 Mustang, when I looked at it. It had a 65" Model 4 barrel carb, the intake was a 65" 289 intake, the spark plugs were the old 13/16 plugs. I was getting excited as I thought I had found a 65 K code motor! Even though it was in a 72" Turns out someone had put all those parts on top of a 1978 302 block. So I had a morphydite. Dang. Keep Digging. Numbers don't lie! but people do. LOL!
JTS
JTS