How hard is it to tune a 650dp?

[65stang289]

I just bought one for $50 bucks how hard are these to tune. What size jets should I run up front and back.

 

[10secgoal]

Not hard. But the jet sizes will be one you, and waht you find in the tuning of it.

 

[12sec67]

not that hard but you will need to buy a jet kit.

10secgoal can correct me on this but you should have 7-10 jet sizes between the front and back.
he keep telling me to get this book that he leaned from but i always tell him i don't need a book ... i have you right here!

 

[brianj5600]

If you know what each circuit does it is a major help. Tuning is not a black art or rocket science. If you blindly tune on a carb, you'll tell everyone that Holley's are junk. There are some good pages on the web. Try searching "Holley tuning". Or buy a book. There is enough info to fill a book, so I won't try to cover it here.

 

[10secgoal]

If you know what each circuit does it is a major help. Tuning is not a black art or rocket science. If you blindly tune on a carb, you'll tell everyone that Holley's are junk.

The difference of the jets from front to back depends on the size fo the PVCR, which differs from model to model. Usually about 10 on a DP.

 

[ddonaca351]

We just did a big thread on here like two weeks ago helping a guy learn how to tune a holley, do a search first and read. Not trying to be rude, just its alott of typing over and over and over....

Dave-