I swapped to an ls1 intake a few weeks ago and have been having major troubles with the belts throwing. I think my problem is in the alignment of the tensioner. I used the dirty dingo tensioner relocate kit and am running a 101.5" belt. i am using the stock tensioner off the 01 truck 5.3 motor with a few washers as spacers to help with the alignment. I originally grinded down the mounting points of the truck tensioner cause it seemed to stick out too much. I am also running the truck pulley on an f body water pump. In addition to the belt throwing, im also running the 98 vortec throttle cable and stock ls1 f body throttle cable bracket. I notice the throttle is not going WOT 100%. So to those who have done the swap, what tensioner r u running and what tensioner. BTW my swap vehicle is an 87 chevy shortbed truck