Yup. The fuel is an issue where I am at most definitely, which is why I think I had such problems without any knock sensors for most of my motor's short life.
Good decision...whenever you get it up and running, experiment with octane booster. Data log and see how much KR you're getting with and without. It may help allow you some extra timing and power without retard. NOS brand is a good one. Where are you located? Have any pics of the piston skirts?
I've always been skeptical about octane booster... Sort of a band-aid fix at best. I mean, to start with, just how evenly is that going to be blended with every bit of gas in the tank? It's kind of like when you pee in the pool, there's a warm spot for a long time.
i hera ya, but better than nothing. Could always put in the tank the day before you log and let it mix overnight.
I live in Wyoming, elev. 6970 or so where I am at. Pistons ordered, 3 weeks out or so, stock CR, 4.085" bore. I haven't taken pics yet...quick stop by the machine shop this week-end hopefully. Daughter got mono and wife is super busy so had to semi-back-burner the car briefly
Wiseco 4.085" X 4.080" forged, stock CR (so it's classified as a custom because of the .005" and lowered CR) set of 8 with rings...$860 p/n K469x25 from their web site: • 2618 Alloy: Will not shatter like hypereutectic or cast pistons. • Strutted skirt design is the strongest and specially designed to run at as little as .004” clearance, with excellent skirt wear and minimal noise or rock. • Radiused Valve Pockets for detonation resistance and increased fl ow around valves. • Anti-detonation Grooves with the added benefi t of keeping the top ring groove free of carbon. • 3mm oil rings for better oil control and reduced friction for more horsepower. • Pressure Groove for enhanced ring seal. • Features Chrome Moly Pins and Spiralox. (Tool steel pins optional.) • Brush domes require minimal deburring by the engine builder. • Skirt coated for lower friction, reduced noise, and superior life. • Multi-fit valve pockets for interchangeability of cylinder heads.