Recently got myself a TVS for a great price. Its coming with a 2.4 pulley on it. I have 13/14 injectors ready to go so I think I have everything ready to bolt on. I am moving to a place with only 91 octane so my question is, is the 2.4 too aggressive with the 91 octane? I have a JLT 123mm intake, and CJ65mm throttle body. I plan on using the stock lower and I have a 90mm idler already. SHould I go with a 2.6 upper pulley? Thanks in advance!