Stock lift is 7.6mm (.300) the duration is 199 @ .050. So to go to 10.3 (.405) @ ?? duration you will need port work. The reason I say this is the stock 7M head flows almost same number at .300 as it does at .450 +3-6cfm. If it is a great deal get them. Just know you need to do a few things to use them. Are you sure they are Todas and not T.E.D. Components cams (specs for KK108 number 3 below)?
http://www.todaracing.com/products/toyota/camshafts_7mg_specs.html
T.E.D. below:
Toyota 7MGTE Horse Power Quick Kits
Turbo Applications (CUSTOM BILLET camshafts only)
**45-100HP+ gain
1: KK101 : 8.9mm/262 duration
2: KK102 : 9.7mm/272 duration
3: KK108 : 10.35mm/10mm/264/258 duration
4: KK108B : 10.7mm/262 duration
5: KK610 : 11.8mm/288 duration (requires shim under lifter)
6: KK611 : 12.5mm/288 duration (requires shim under lifter)