i might order those too now lol. thats a great price for springs retainers locators and seals!

 

In single beehives I've used Comp 918s, Pac 1518 with no failures. The longest lasting on high lift (without significant loss in pressures after 15k) has been PSI 1511. I tend to use those nowadays if I'm able to locate them easily.
Beehives have attributes that are not available in duals, some of which:
- Better harmonic control
- Lighter effective moving mass weight.

 

Ok im either goin to roll with PAC 1518 or brains from tick ill do some more researching before I decide

 

The last set I did I didn't have to shim them. But I did check them to see what the install height was. Seems like they came in at around 1.750" and they where on a souped up .615" lift cam.

 

The Comp 918's used to be really good when PAC was making them for Comp.

 

Look at the application as well as price. Predator-Z has given you some good info.

 

Yea I def know I was leaning more towards the PAC 1518 the duals just comes in a set with reasonable price but since im waiting anyway I might just get PAC1518 and buy retainers and seats

 

To help with price you can use the stock retainers and seats with the 1519's.

 

Ok cool do the duals have an advantage over the singles? If there rated the same?

 

That is for the entire kit and caboodle.