Didn't work, and with moving stuff around vac lines busted all over the place. NOW it's hard to start and runs bad. Gonna buy about 6 feet and replace all the little skinny plastic vacuum lines and go from there. How hard it was to start today, I'm suspecting fuel pump. I can't see pressure with the motor under load going down the road. I put an LS1 in my 70's jet boat last winter. It was acting similar to this the couple of times in the water. Run great on first start up then run like crap. Fuel pump fixed it.