it is tough to say what is "safe" for a particular motor. camaroracer1992 had a stock 305 with a 125shot that never missed a beat, even after he put prolly 30bottles through the thing. when we took teh motor apart it was so clean you woudl swear there was only like 10k on it.
i say get a kit with 75/100/125 pills and set it to where ever you feel comfortable drivin it.
later
tim
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