First Boldenone is EQ

Second
I did a PubMed search for scientific literature indicating the relationship between AAS and maximal speed. I was unable to find anything related to MAXIMAL speed but I did find a few articles related to submaximal speed and VO2 max.
Anabolic-androgenic steroid increases running endurance in rats
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?CMD=search&DB=pubmedConclusion: Rats that train spontaneously while being treated with an anabolic-androgenic steroid had increased submaximal running endurance compared with trained rats treated with saline, despite the similar voluntary training distance and skeletal muscle oxidative capacity between the two groups
Effects of nandrolone decanoate on VO2max, running economy, and endurance in rats
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?CMD=search&DB=pubmedCONCLUSIONS: AAS treatment combined with submaximal training enhances SRE (submaximal running endurance) more than training alone but exerts no additive effects on VO2max (maximum oxygen consumption), running economy, and oxygen carrying capacity of blood.
I'm not sure what the definition of 'submaximal' is as its not defined in either article, but I would certainly consider a 40 yard dash a maximal effort output. Also, it might be difficult to to produce a maximal effort in rats.
We do know that EQ is directly related to Erythropoiesis but that's usually linked to long distance sports, like the Tour de France.
Perhaps on of the experts or freakfest can give a better answer.