Some pictures of the engine: $500 lump when I bought it (still was a good deal). First I had tr-power, then i went to a 4 bbl. The 4 bbl. is way more reliable and seems to run much better. But I do know some people that have their tri-powers dialed in and really love them. The engine is a bit warmed over with a cam, slight bore, HEI, etc. don