This is an opinion from the race engine builder that does all my machine work. Low compression engines do not do well on high octane fuel. He says that only do you spend more money but the performance is less. He is a circle track guy and he says that the engines are lazy. I imagine that it slows the burn rate down.
ALEX WILEY
59 SAAB 750GT MINI STOCK 70-72
67 NSU 1000TT C SEDAN 73-75
67 NSU 1000 TTS GT5 81-82
74 FIAT 128SL GT5 83-84
71 DATSUN 510 MINI STOCK 89-91
74 SAAB 99 ITB 92
74 VOLVO 142 MINI STOCK 93-05
84 VW GTI ITB 06-08
87 VW GOLF GTI ITB #15 CURRENT
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