Retired Air Force
Tore the engine down and the damage was not bad, the block and pistons are fine. Cannot afford to buy and prep a dart block right now (will be unemployed in April) but hate to put it all back together without an upgrade. I am considering an E-85 swap. If I mill down the deck and/or heads maybe I can get 13.5-1 comp ratio without changing the pistons. Then I would just have to convert the carbs and fuel system and I will have (according to my desk-top dyno) an additional 90hp at 6500 RPM. The heads or cam profile are not optimal but still a pretty good boost! It would run cooler so maybe I could ditch the water in the headers? The only down side I see is fuel consumption. Long trips like DLB hookey day would be less practical but not impossible. Maybe I could get someone to carry gas for me? I could get bigger tanks? I found 13 gallon tanks vs. my 10 gallon ones online. Faster and more unpractical! Why is that always the case? My desk-top dyno also shows the hp between the 489 and 565 to be identical at 6500 RPM for my set up? The 565 has a lot more power at 5000 but not at 6500. I wonder how accurate that is?