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Old 05-05-2009, 01:02 AM   #15
Morley
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Re: very lazy off idle after head swap

Quote:
Originally Posted by jason-1995fbody View Post
yeah the timing cant be set that way to big of a cam little to no vacuum at idle

and i figured out the holley it has a needle valve under the accelerator pump nozzle i shortened it and now it work perfectly could be jetted up a bit i think but it is way better than the q jet its still pulling after 5500 (my old shift point)
o and 6 psi for fuel pressure its a 660 vacuum secondaries

and on a side note it is still kinda lazy off idle
Try running the RPM's up to 1100-1500 and see what kind of vacuum you can get that way.
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