bwaahahahah... yes this can be a tricky thing to do as I "built" a 250 six for my 67' nissan patrol. it had it's moments when I thought the whole shebang was going to fall over and then I used a lighter weight stand than a heavier one as I did not know better at the time as they can hold different wieghts according to their specific use good luck and be careful!!!!! sdsmooth aka socketdropper.