So, first the setup- I built a 1968 327, it is .060 over, has 1996 Vortec cylinder heads edelbrock vortec performer intake manifold, 600cfm edelbrock performer carb, cam is Comp Cams XE262h. Engine runs great and has for the last 2000 miles. Engine is mated to a stock 200-4R with very highway friendly 2.41:1 LSD rear end.
Second, the issue- I recently acquired a timing light for the purposes of setting my timing to the proper specifications for vortec heads. Now I am pretty certain that initial timing advance for these cylinder heads should be 10* and total should be around 30-32*. The problem is that at idle with vacuum advance plugged she's advanced 48*:wow: and total timing is beyond the 60* limit of my timing light:nervous:. When I try to drop her down to 10* initial she dies at around 30-32*.
Now, the question- Did I Eff it up? or am I just missing something simple? Could anyone shed some light on this issue?
Second, the issue- I recently acquired a timing light for the purposes of setting my timing to the proper specifications for vortec heads. Now I am pretty certain that initial timing advance for these cylinder heads should be 10* and total should be around 30-32*. The problem is that at idle with vacuum advance plugged she's advanced 48*:wow: and total timing is beyond the 60* limit of my timing light:nervous:. When I try to drop her down to 10* initial she dies at around 30-32*.
Now, the question- Did I Eff it up? or am I just missing something simple? Could anyone shed some light on this issue?