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Old 06-27-2017, 10:38 AM   #11
randy500
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Join Date: Jul 2016
Location: Tacoma, WA
Posts: 6,873
Re: help with new 383 stroker issue

Quote:
Originally Posted by 88Stanger View Post
Stabbing the throttle as in hitting the throttle quickly.
Cannot drive it because of this problem.
Timing - 14 degree initial, 34 total
Vacuum advance connected to proper ported vacuum source
Firing order checked multiple times by multiple people
Puke - backfire up and out carb with fuel sometimes spitting out also.
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Ported vacuum is actually and emissions thing, disconnect it and see how it acts, usually it doesn't matter but it can.
Check the firing order with the exact method I wrote otherwise you don't know if it's right or not. Just because multiple people checked it doesn't mean it right, do it yourself with the method I wrote and YOU will know for sure it's right.
The vac gauge test will be informative too and is a must,

I just had this same problem with my son, he changed the head on his Toyota with little guidance...ran like crap with intake popping, it had a valve open, he didn't adjust the valves after the head gasket change.

Stick with the basics
Fuel
Air
Compression
Timing

What about voltage to the coil, are you still using the factory resistance wire.
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