b18c1 in 88 ef.ls trans in it now ,i know ,in it when i bought it.want to do a j1 with mfactory gearset,final and lsd.my question is will it be to low for street use.
ratios are
1st: 3.070 38mph 8100rpm redline 205/50/15 tire
2nd: 2.105 54mph
3rd: 1.430 80mph
4th: 1.100 104mph
5th: .848 135mph
final:4.928

also who would be a trusted person to build it for me.