14x7 tire stretchin

im workin on a datsun 510 rite now and im thinkin of throwing my og 14x7 work equips on there..  anyone stretch small wheels before?  i need some sizing... im thinkin at least a 45 or maybe 50 to get that bubble stretch...

i'll let you no by monday...if my 15 x 8 's dont fit in the back which they should then i'll be going that route...go to the 510 forum..they alot of good info for yah...what year is yours and is it 4 door...?

its my homies car... 72 2 door... doin the sr swap from scratch... 
yea lemme know wassup with some tire sizing..

ive done 13x7 and 13x8 or whatever those lowrider rims are... those are fun to streatch... but thats a different story from 14x7 with low series tires.... goodluck with that....

good point... im thinkin since the wheels r kinda small, i was think bout doin those lowrider stretch... whats those size, like 165/50 155/60...