Tack problems. 24x LT1

[Ryan Stout]

LT1, 24x swap, all efi connection stuff, all fuses unplugged minus ecu,
crank, and gauges, value in HPT is 3, grounds all good and checked with a
meter, has a MSD 2step set at 4k. *Now that that's out of the way...

When starting the car the tach reads 2500-3500rpm. As soon as it runs it
goes to 900 like it should. Driving it's fine, it spins hard in 1st at the
track. *It shoots to 11500rpm, but HPT says I'm at 5500. ONLY happens when
car spins and when starting. Any ideas?

http://www.youtube.com/watch?v=OMzHf...e_gdata_player

Not really sure where to go besides a 12v pull up.

PCM is a 0411.
Please don't flame me if this is in the wrong section or I just simply overlooked something. Posting from my iPhone so I apologize if the text is off. Yes, autocorrect made it say tack, not tach.

[flame]

If the tach worked fine before and you set the tune to 3 & 3 then it should work. Post the tune

[Ryan Stout]

Here she is. Its just a rough tune, kinda new to this. I'll get to everything else when I get my tach fixed. Thanks!

[flame]

Did the tach work right before the swap?

[Ryan Stout]

Yep, no problems at all, I tried a pull up resistor last night, still the same thing. I might just say hell with it and get a shift light activated off the old CAGS stuff.