Lift is at .55", runner cc is 204 ported up from the 197ccs, at 28".
Heads and block received an ultra fine grind for better sealing.
I'll attach the engine spec sheet.
Flow on spec sheet is advertised, actual is 310/239.
Chamber volume is 83 not 85.
I changed from the rope gasket to a two piece teflon lip/chevron rear seal.
The oil pump is not a high volume, melling only makes one for Pontiac.
It took me quite a while to build due to machining problems, mains where bored three times, I had to polish the seal area of the crank and I had to make a tool to machine the rear seal groove.
My wife was happy to see it out of the garage so she could park her car inside again.

I sold the ram air III heads that were on the 428 when I bought the car to a fellow who has a later low C/R 400, they will work better for him than they did for me.