new engine - runs HORRIBLE

im chasing my tail. installed RNH 347. had to work out some firing issues (dizzy 180 out/firing order/messed up MSD box). after doing so, the car ran OK. it missed and would hold idle sometimes - but it ran. I figured it was because the valves need to adjusted.

trackheat heads, stock (new) lifters, 1.7 scorpion roller rockers.

lone behold, i tested via exhaust/paper.. that one or more exhuast valves were staying open. so - i go to adjust. i use FTI's adjusting techniques - 0 lash, .5 turn on adjuster nut, tighten locking nut. fire it up - its surges and then dies.. and when i try to give it gas it dies and back fires.

I originally thought i mixed up some wires, so i double checked. nothing. checked all electrical connections and nothing is apparent.

where do i start now ? i just want it to run
 
ExplodingGopher said:
dumb question, did you adjust that and all the valves on the compression stroke? I know when i adjust my 460 theres a certain sequence i have to adjust in then turn the crank by hand 90* after each valve is set. The general rule is 1/2-3/4 of a turn past zero lash.

I adjusted according to FTI's website - wait for exhaust to open, adjust intake / wait for intake to almost close, adjust exhaust.
 
JMD Engineering said:
I adjusted according to FTI's website - wait for exhaust to open, adjust intake / wait for intake to almost close, adjust exhaust.

I just did mine the same way (TF 1.6 roller rockers), but did you do them in the firing order sequence? I just did mine 1,2,3,4,5,6,7,8. Beginning to think I should have done it in firing order. Does it matter if it's on compression stroke or not?

When I'm at low rpm it stumbles but if I hit half throttle it smoothes out. Also does yours smell like it's running rich?