don't know if it helps but it is definitely really bad only at high revs. the lower end doesn't do it as bad.
If anyone knows the specs of 1G-GTE and 1G-GEU (i know i have talked a little about it before but i want to be definite before i start something crazy). I can get my hands on a stuffed bottom ended 1G-GTE for really cheap. if i swap heads, pistons (to try and keep the same compression) TT manifold and ECU i should be sweet to run a full boost TT???
The 1G-GTE is only suffering from a stuffed main baring. so i should really be able to put the two together and have a working motor?