lq4 swap won't run for more then a few seconds

[Silverado889]

ok, you guys are rite. I guess if its firing up and running no problem then theres no reason to change it anyway. I am going to check valve after the regulator to maintain pressure in the rails after the prime... On another note, does anyone have thots on all the different heads out there? im running a 228/230 .588 .591 cam natural this season, but will be going turbo over the winter. Should i wait and get optimum chamber sizing for boost vs. the natural setup im running now?

[Wagonbacker9]

ok, you guys are rite. I guess if its firing up and running no problem then theres no reason to change it anyway. I am going to check valve after the regulator to maintain pressure in the rails after the prime... On another note, does anyone have thots on all the different heads out there? im running a 228/230 .588 .591 cam natural this season, but will be going turbo over the winter. Should i wait and get optimum chamber sizing for boost vs. the natural setup im running now?

If you're boosting, thats the time to head swap. the 5.3 I'm looking at has cracked head(s), so I'm going to have to put my boost heads on it NA, so I'm probably going to set it up with a CR in the middle which isn't ideal.