[Baron Von Zeppelin]

No idea where you are located or where you bought the heads --
- but if anywhere near Greensboro NC area -
- they were likely done for Russ that worked at Motor Bearings on Patterson Ave.

Longshot
He was always building HiPo Poncho stuff for a while in the 80s and early 90s

[sdbob]

I had friend working ,going to school GMI he was working in dyno room at Pontiac. He gave me the dyno sheets from the SD455 about 1976. I've given them out to many people over the years.( he ask me to keep them to myself then at 1st POCI orange county I gave them to Pete for the first time) they are dated1970 at the top. I do have nos push rod tubes. Interesting heads

[73T/A]

Originally Posted by Baron Von Zeppelin

No idea where you are located or where you bought the heads --
- but if anywhere near Greensboro NC area -
- they were likely done for Russ that worked at Motor Bearings on Patterson Ave.

Longshot
He was always building HiPo Poncho stuff for a while in the 80s and early 90s

Thanks for the info.Im not anywhere near NC.I bought the heads 24 years ago.They were purchased out of state maybe Florida but not one hundred percent sure on that.I was trying to remember were I seen them advertised might have been the old Classical Pontiac classified section on line or maybe eBay.I know I paid cashiers check.Its been a long time ago.