i have 370 marine injectors dont know much about them as they came with the truck when i baught them and id like to upgrade to 435s to run with my hx35/ht3b setup... im sure noone is going to want to downgrade from 435s to 370s but its worth a shot... so if someone has some 435s they want to sell or trade let me know and if someone is interested in just buying my 370s let me know and if i come accross a set of 435s i will sell my 370s