Where would i find 720's and how much do they usually cost?

Try here - Marren Fuel Injection



Just call them up and let them know what you need. It tried to get the 720cc injectors a while back but I would have had to wait for a month or so. There was a backorder from hell everywhere I went to. This place had the 72# injectors ready to go. Plus they were pretty inexpensive compared to the import specific shops (ain't that always the way though? https://www.nopistons.com/forums/pub..._DIR )