To me the hibuck starters are a waste.In 90 degree days I can run my 440 in the lanes race and it still cranks like a ?6/Even driving around town its tha same.i have 12.5 domes so your low compression should turn real fast.My kids 300 413 had 2 1/8 inc tubes and really aroundhis mini.It still cranked fast.He ran 1 gauge cables also.I used to watch my old factory cables smoke when cranking.Went to 1s and no problems.Rocky