We used those 50 years ago. I don,t think it did any good though. When we switched to no-lead gas back in 1975 everyone thought we were going to have all kinds of problems & nothing happened. No-lead seems to work fine unless you have real heavy duty operations. We used to have a lot of trouble running on propane. The valve seats would resess way back in the head, especialy on 300 in. Fords.


They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.
1972 Chevy c10 Cheyenne Super
In the Gallery Forum