Why don't you pull off the vacuum hose at the TVIS actuator and vacuum plug the hose. Drive around to see if you like it or not before you gut the TVIS. I believe your having the 225 engine?
I'm planning to buy this prof sheepdog blow off for my celica (76 model).
Btw do you expert guys here could tell me that issit this blowoff ori or fake and can this blowoff could be installed to my car? tq very much...