Re: 258 doesn\'t pull past 3000RPM. Why?
*Some* Reasons for not getting past 3,000 RPM...
1. You didn't do the 'Nutter' bypass... (no flames please for saying 'Nutter')
(two wires, easy to do)
2. You are getting so much cross fire in the distributor cap it can't rev any higher.
(Get better rotor, Go to wider cap with brass terminals)
3. The advance has come in, and you are firing the wrong terminals in the cap.
(go to wider cap with brass terminals, wider cap spreads the terminals out)
4. Your coil is laying down on the job.
(Get a 'Hotter' coil, like the Ford TFI coil)
5. You plug wires have degraded to the point of not being able to do the job.
(Get low resistance, high efficiency plug wires)
6. Your ignition module may be lying down on the job.
(about $20 for a new module. Get the 'Blue Grommet' module)
7. One or more of about a dozen connectors may be fouled and not making good connection.
(Open and clean all connectors involved with the ignition system)
8. It may be a problem with the Tach. It's rare, but bad tachs have been know to work like rev limiters, or kill the ignition all thogether.
(There is a way to jump the tach to see if that's it.)
9. It may be a problem with the Module ground. This is pretty common.
(It takes three feet of 12 ro 16 ga. wire and ten minutes to fix)
10. May be 'Mystery' problem...
(If that's the case, we'll help you find that problem and kill it.)
9 chances out of 10 the large cap/ TFI igniton upgrade that is being called the 'TeamRush' upgrade will fix your problems.
Just about anyone can do it, and it's all parts you change in a good tune up anyway...
If you are interested, there are several here that can help, including me.
Good luck, Aaron.
"I Have The Body Of A God... Buddha"