My 434" small block was broke in and tuned on a engine dyno using Crate 98 race gas. After all the tuning we pumped the fuel cell and emptied the carb bowls and poured in a can of pump 93. After bringing it up to temperature it made 30 more hp than the 98 did. I thought it was a fluke or something went wrong with the computer so we cooled it down and made another pull, again 30 more hp.
That's pretty interesting. Surprising to me. But interesting.
1969 Dart GTS 340 1969 Super Bee X9 N-96 1969 Coronet R/T X9 N-96 2015 Dodge Dart GT 2019 Ram 2500 Big Horn. Looking for the original block for my Bee. The last 4 are 7449
